Lord Abbett Municipal Income Fund NPORT-P Lord Abbett Short Duration Tax Free Fund (Dec 2020 report)

Lord Abbett

Quarterly Portfolio Holdings Report

Lord Abbett

Short Duration Tax Free Fund

Intermediate Tax Free Fund

National Tax Free Fund

High Yield Municipal Bond Fund

Short Duration High Yield Municipal Bond Fund

California Tax Free Fund

New Jersey Tax Free Fund

New York Tax Free Fund

For the period ended December 31, 2020

Schedule of Investments (unaudited)

SHORT DURATION TAX FREE FUND December 31, 2020

Investments	Interest Rate			Maturity Date	Credit Rating: S&P or Moody’s	Principal Amount (000)		Fair Value
MUNICIPAL BONDS 90.47%
Corporate-Backed 7.50%
Allegheny Co IDA - US Steel		4.875%		11/1/2024	B-	$	3,150	$	3,171,042
Burke Co Dev - Oglethorpe Power		1.50%	#(a)	1/1/2040	BBB+		3,750		3,830,550
Downtown Doral CDD†		3.875%		12/15/2023	NR		160		165,230
Farmington Poll Ctl - NM Pub Svc		1.10%	#(a)	6/1/2040	BBB		16,000		16,248,160
IA Fin Auth - Iowa Fertilizer Co		3.125%		12/1/2022	BB-		1,500		1,536,480
LA St John Parish - Marathon Oil		2.10%	#(a)	6/1/2037	BBB-		8,000		8,198,320
LA St John Parish - Marathon Oil		2.125%	#(a)	6/1/2037	BBB-		5,650		5,794,866
LA St John Parish - Marathon Oil		2.20%	#(a)	6/1/2037	BBB-		2,000		2,066,020
LA St John Parish - Marathon Oil		2.375%	#(a)	6/1/2037	BBB-		2,575		2,683,614
Lancaster Port Auth Gas Rev		5.00%	#(a)	8/1/2049	Aa2		10,000		11,723,100
Matagorda Co Nav Dist - AEP TX Central		2.60%		11/1/2029	A-		1,400		1,526,014
Matagorda Co Nav Dist - AEP TX Central (AMBAC)		4.40%		5/1/2030	A-		1,500		1,866,225
Mobile IDB - AL Power		1.00%	#(a)	6/1/2034	A1		3,100		3,179,794
Mobile IDB - AL Power		2.90%	#(a)	7/15/2034	A1		20,000		21,501,200
Nez Perce Co Poll Ctl - Potlatch		2.75%		10/1/2024	BBB-		11,310		11,696,689
NH Bus Fin Auth- United Illuminating		2.80%	#(a)	10/1/2033	A-		5,000		5,264,650
Niagara Area Dev Corp - Covanta†		3.50%		11/1/2024	B1		750		772,860
OH Air Dev Auth - AEP		1.90%	#(a)	5/1/2026	BBB+		2,000		2,092,560
OH Air Dev Auth - AEP		2.40%	#(a)	12/1/2038	BBB+		10,700		11,351,095
OR Bus Dev Comn - Intel Corp		2.40%	#(a)	12/1/2040	A+		10,500		11,044,320
Parish of St James - Nustar Logistics†		5.85%	#(a)	8/1/2041	BB-		3,500		3,911,740
Selma IDB - Intl Paper		2.00%	#(a)	11/1/2033	BBB		2,625		2,776,672
St Charles Parish - Valero Energy		4.00%	#(a)	12/1/2040	BBB		6,625		6,881,652
Tuscaloosa IDA - Hunt Refining†		4.50%		5/1/2032	NR		1,475		1,652,974
Warren Co - Intl Paper		2.90%	#(a)	9/1/2032	BBB		4,250		4,528,035
WI PFA - American Dream†		5.00%		12/1/2027	NR		2,000		1,802,040
Wise Co IDA - VA Elec & Pwr		1.20%	#(a)	11/1/2040	A2		5,470		5,599,858
Total									152,865,760
Education 1.75%
CA Muni Fin Auth - William Jessup U		5.00%		8/1/2022	NR		750		770,873
Cap Trust Agy - Renaissance Chtr Sch†		4.00%		6/15/2029	NR		1,415		1,487,745
Chicago Brd Ed		5.00%		12/1/2022	BB-		1,000		1,055,980
Higher Ed Facs Fin Auth FL - Saint Leo U		5.00%		3/1/2021	BBB-		365		366,639
Higher Ed Facs Fin Auth FL - Saint Leo U		5.00%		3/1/2022	BBB-		355		366,765

See Notes to Schedule of Investments. 1

Schedule of Investments (unaudited)(continued)

SHORT DURATION TAX FREE FUND December 31, 2020

Investments	Interest Rate			Maturity Date	Credit Rating: S&P or Moody’s	Principal Amount (000)		Fair Value
Education (continued)
Higher Ed Facs Fin Auth FL - Saint Leo U		5.00%		3/1/2023	BBB-	$	410	$	431,533
Higher Ed Facs Fin Auth FL - Saint Leo U		5.00%		3/1/2024	BBB-		640		687,398
Higher Ed Facs Fin Auth FL - Saint Leo U		5.00%		3/1/2025	BBB-		675		738,875
IL Fin Auth - IL Inst of Tech		5.00%		9/1/2021	Baa3		500		508,980
IL Fin Auth - IL Inst of Tech		5.00%		9/1/2022	Baa3		500		531,300
IL Fin Auth - IL Inst of Tech		5.00%		9/1/2028	Baa3		1,135		1,398,195
IL Fin Auth - IL Inst of Tech		5.00%		9/1/2029	Baa3		630		788,035
Multnomah Co Hsp Facs - Mirabella		5.00%		10/1/2024	NR		1,255		1,318,980
NY Dorm - Mt Sinai Sch Med		5.00%		7/1/2021	A-		2,000		2,042,700
NYC IDA - Yankee Stadium (AGM)		5.00%		3/1/2028	AA		1,350		1,718,010
OH Hgr Ed Facs - Dayton Univ (AMBAC)		2.639% (CPI Based	)#	12/1/2022	A+		2,000		2,046,020
OH HI Ed - Case Western Univ		0.528% (1 Mo. LIBOR * .70 + .42%	)#	10/1/2044	AA-		8,000		7,997,440
Troy Cap Res Corp - RPI		5.00%		8/1/2021	A3		445		455,075
Troy Cap Res Corp - RPI		5.00%		8/1/2022	A3		1,000		1,061,590
Univ of North Carolina - Chapel Hill		0.454% (1 Mo. LIBOR * .67 + .35%	)#	12/1/2041	AAA		10,000		10,000,200
Total									35,772,333
Energy 1.07%
KY Public Energy Auth - BP		4.00%	#(a)	12/1/2050	A1		5,000		5,822,300
PEFA Gas - Goldman Sachs		5.00%	#(a)	9/1/2049	A3		13,000		15,937,220
Total									21,759,520
General Obligation 19.80%
Allentown City SD		2.375%		3/31/2021	NR		2,500		2,500,175
Binghamton CSD		1.50%		6/25/2021	NR		28,303		28,481,777
Binghamton CSD		1.50%		11/12/2021	NR		7,695		7,781,723
CA State GO		0.867% (1 Mo. LIBOR * .70 + .76%	)#	12/1/2031	Aa2		2,000		2,002,260
Chicago Brd Ed		4.00%		12/1/2021	BB-		3,400		3,461,268
Chicago Brd Ed		4.00%		12/1/2021	BB-		4,750		4,835,595
Chicago Brd Ed		4.00%		12/1/2022	BB-		3,555		3,687,886

2 See Notes to Schedule of Investments.

Schedule of Investments (unaudited)(continued)

SHORT DURATION TAX FREE FUND December 31, 2020

Investments	Interest Rate			Maturity Date	Credit Rating: S&P or Moody’s	Principal Amount (000)		Fair Value
General Obligation (continued)
Chicago Brd Ed		4.00%		12/1/2022	BB-	$	4,000	$	4,149,520
Chicago Brd Ed		5.00%		12/1/2022	BB-		3,670		3,875,447
Chicago Brd Ed		5.00%		12/1/2023	BB-		3,330		3,592,104
Chicago Brd Ed (AGM)		5.00%		12/1/2033	AA		1,850		2,264,307
Chicago Brd Ed (AGM)		5.00%		12/1/2034	AA		4,300		5,254,987
Chicago GO		5.00%		1/1/2021	BBB+		6,355		6,355,000
Chicago GO		5.00%		1/1/2027	BBB+		6,700		7,610,463
Chicago GO		5.00%		1/1/2028	BBB+		4,900		5,595,898
Chicago GO		5.25%		1/1/2023	BBB+		1,235		1,316,424
Chicago GO		5.25%		1/1/2027	BBB+		1,665		1,847,700
Chicago Met Water Reclmtn Dist		5.00%		12/1/2022	AA		5,000		5,425,150
Clark Co SD (AGM)		3.00%		6/15/2024	AA		575		625,583
Clark Co SD (AGM)		3.00%		6/15/2025	AA		650		720,181
Clark Co SD (AGM)		5.00%		6/15/2026	AA		500		619,210
Clark Co SD (AGM)		5.00%		6/15/2027	AA		1,000		1,269,750
Clyde-Savannah CSD		1.25%		6/24/2021	NR		21,133		21,228,628
Cook Co GO		5.25%		11/15/2033	A+		6,525		6,541,900
Corinth CSD		1.50%		7/23/2021	NR		11,490		11,565,489
CT State GO		5.00%		8/15/2021	A1		5,000		5,146,200
CT State GO		5.00%		6/15/2022	A1		3,250		3,473,405
CT State GO		5.00%		11/1/2022	A1		7,700		8,001,532
CT State GO		5.00%		4/15/2025	A1		7,000		8,356,040
CT State GO		5.00%		10/15/2026	A1		5,000		6,264,900
CT State GO		5.00%		9/15/2030	A1		1,725		1,847,682
Erie CO GO		3.00%		6/24/2021	NR		10,000		10,124,900
HI State GO		5.00%		11/1/2021	AA+		5,000		5,200,450
IL State GO		5.00%		2/1/2021	BBB-		3,000		3,008,790
IL State GO		5.00%		11/1/2023	BBB-		10,000		10,796,100
IL State GO		5.125%		5/1/2022	BBB-		2,500		2,630,050
IL State GO		5.25%		2/1/2030	BBB-		3,000		3,245,910
IL State GO		5.375%		5/1/2023	BBB-		3,000		3,261,960
Katy TX ISD		0.386% (1 Mo. LIBOR * .67 + .28%	)#	8/15/2036	AAA		16,670		16,649,829
Ledyard GO BANS		2.00%		5/11/2021	NR		10,000		10,063,800
Massena CSD		1.50%		8/27/2021	NR		12,000		12,103,200
Medina CSD		1.50%		7/16/2021	NR		14,000		14,090,160

See Notes to Schedule of Investments. 3

Schedule of Investments (unaudited)(continued)

SHORT DURATION TAX FREE FUND December 31, 2020

Investments	Interest Rate			Maturity Date	Credit Rating: S&P or Moody’s	Principal Amount (000)		Fair Value
General Obligation (continued)
Moorestown GO		2.50%		7/30/2021	NR	$	12,282	$	12,450,632
New Caney ISD		3.00%	#(a)	2/15/2050	Aaa		5,000		5,083,900
Newark NJ GO		2.00%		10/5/2021	NR		4,200		4,242,798
NJ EDA - Motor Vehicle Surcharge		4.00%		7/1/2022	BBB		3,500		3,682,035
NJ State GO		5.00%		6/1/2026	A3		8,000		9,790,880
NY Dorm - Sch Dist (AGM)		5.00%		10/1/2024	AA		2,250		2,633,017
NY Dorm - Sch Dist (AGM)		5.00%		10/1/2025	AA		1,650		2,003,034
NYC GO		5.00%		8/1/2021	AA		7,410		7,615,924
NYC GO		5.00%		10/1/2033	AA		3,190		3,457,418
PA State GO		5.00%		7/15/2029	Aa3		10,000		13,449,200
Philadelphia GO		5.00%		2/1/2025	A		2,140		2,522,825
Philadelphia GO		5.00%		2/1/2026	A		1,000		1,219,080
Philadelphia GO		5.00%		2/1/2027	A		1,250		1,567,413
Philadelphia GO		5.00%		2/1/2028	A		2,000		2,571,880
Philadelphia Sch Dist		5.00%		9/1/2021	A2		1,500		1,544,010
Philadelphia Sch Dist		5.00%		9/1/2022	A2		1,150		1,233,421
Philadelphia Sch Dist		5.00%		9/1/2023	A2		1,250		1,394,225
Philadelphia Sch Dist		5.00%		9/1/2024	A2		900		1,039,185
Philadelphia Sch Dist		5.00%		9/1/2025	A2		1,200		1,430,352
Philadelphia Sch Dist (The)		5.00%		9/1/2021	A2		930		957,286
Philadelphia Sch Dist (The)		5.00%		9/1/2022	A2		550		589,897
Philadelphia Sch Dist (The)		5.00%		9/1/2023	A2		500		557,690
Prince Georges Co GO		4.00%		8/1/2031	AAA		7,690		8,445,619
Rangely CO Hosp Dist		4.50%		11/1/2021	Baa3		1,520		1,547,421
Saranac CSD		1.50%		7/15/2021	NR		16,800		16,907,688
Suffolk Co GO		2.00%		7/22/2021	NR		16,000		16,102,880
Wappingers CSD		2.00%		8/12/2021	NR		1,763		1,780,747
West Fargo GO		2.15%		5/1/2021	NR		4,075		4,076,304
Western Placer SD		2.00%		6/1/2025	NR		2,000		2,072,740
Western Placer SD		2.00%		6/1/2025	NR		4,750		4,904,232
Total									403,747,066
Health Care 13.49%
Allegheny Co Hosp Auth - UPMC		5.00%		7/15/2029	A		4,000		5,348,560
Allegheny County Health Network		5.00%		4/1/2026	A		2,500		3,048,275
Antelope Valley Hlth		5.00%		3/1/2021	Ba3		500		502,980
CA Stwde - Viamonte		3.00%		7/1/2026	AA-		4,500		4,508,055

4 See Notes to Schedule of Investments.

Schedule of Investments (unaudited)(continued)

SHORT DURATION TAX FREE FUND December 31, 2020

Investments	Interest Rate			Maturity Date	Credit Rating: S&P or Moody’s		Principal Amount (000)		Fair Value
Health Care (continued)
CA Stwde - Viamonte		3.00%		7/1/2027	AA-		$	2,250	$	2,253,780
City of Atlantic Beach Fl - Fleet Landing		3.00%		11/15/2023	BBB	(b)		2,800		2,800,924
CO Hlth Fac Auth - CommonSpirit		5.00%	#(a)	8/1/2049	BBB+			8,085		9,775,169
Cuyahoga Co Hsp - Metrohealth		5.00%		2/15/2025	BBB-			1,500		1,727,160
DC Hsp - Childrens Ntl Hsp		5.00%		7/15/2021	A1			1,215		1,243,650
Duluth EDA - St Lukes Hsp		4.75%		6/15/2022	NR			1,430		1,469,368
Eisenhower Med Ctr		5.00%		7/1/2026	Baa2			1,345		1,616,999
Franklin Co IDA - Menno-Haven		5.00%		12/1/2023	NR			500		540,215
Geisinger Health		5.00%	#(a)	4/1/2043	AA-			17,000		20,944,170
Greeneville Hlth - Ballad Hlth		5.00%		7/1/2021	A-			1,750		1,785,088
Greeneville Hlth - Ballad Hlth		5.00%		7/1/2022	A-			2,000		2,121,000
Greeneville Hlth - Ballad Hlth		5.00%		7/1/2023	A-			1,500		1,652,250
Harris Co Edu Fac - Hermann Health		0.66% (MUNIPSA * 1 + .57%	)#	12/1/2049	A+			7,770		7,735,268
IL Fin Auth - Northshore Univ Hlth		5.00%		8/15/2028	AA-			2,000		2,627,100
IL Fin Auth - Northshore Univ Hlth		5.00%		8/15/2029	AA-			2,000		2,678,940
IL Fin Auth - Northwestern Mem Hlth		5.00%	#(a)	7/15/2057	AA+			4,000		4,351,360
IL Fin Auth - OSF Hlth		5.00%	#(a)	5/15/2050	A			4,500		5,495,220
IL Fin Auth - Plymouth Place		5.00%		5/15/2025	BB+	(b)		1,225		1,286,789
IL Fin Auth - Presence Health		5.00%		2/15/2021	AA+			5,095		5,120,016
IL Fin Auth - Presence Health		5.00%		2/15/2022	AA+			4,000		4,195,520
IL Fin Auth - Rush Univ Med		5.00%		11/15/2021	A+			695		721,716
Kirkwood IDA - Aberdeen Hts		5.00%		5/15/2022	BB	(b)		805		833,280
Lee Memorial Hlth System		5.00%		4/1/2025	A+			2,625		3,111,990
Lehigh Co - Lehigh Valley Health Network		5.00%		7/1/2026	A+			1,755		2,162,406
Lenexa KS Hlth Facs - Lakeview Village		5.00%		5/15/2022	BB+	(b)		1,720		1,771,996
Lenexa KS Hlth Facs - Lakeview Village		5.00%		5/15/2025	BB+	(b)		990		1,075,833
MA DFA - Beth Israel Lahey Hlth		4.00%		7/1/2021	A			700		711,984
MA DFA - Beth Israel Lahey Hlth		4.00%		7/1/2022	A			500		524,855
MA DFA - Beth Israel Lahey Hlth		5.00%		7/1/2023	A			600		668,778
MA DFA - Partners Hlth		0.59% (MUNIPSA * 1 + .50%	)#	7/1/2038	AA-			5,000		5,007,900
MA DFA - Wellforce Hlth		5.00%		7/1/2022	BBB+			1,225		1,297,422
MA DFA - Wellforce Hlth		5.00%		7/1/2024	BBB+			2,030		2,303,603
MA DFA - Wellforce Hlth		5.00%		7/1/2025	BBB+			800		936,712

See Notes to Schedule of Investments. 5

Schedule of Investments (unaudited)(continued)

SHORT DURATION TAX FREE FUND December 31, 2020

Investments	Interest Rate			Maturity Date	Credit Rating: S&P or Moody’s	Principal Amount (000)		Fair Value
Health Care (continued)
Maricopa Co IDA - Banner Health		0.66% (MUNIPSA * 1  + ..57%	)#	1/1/2035	AA-	$	4,730	$	4,709,046
Maricopa Co IDA - Honor Health		5.00%		9/1/2021	A2		750		771,450
Maricopa Co IDA - Honor Health		5.00%		9/1/2022	A2		750		803,760
MD Hlth & HI ED - Univ of MD Med		5.00%	#(a)	7/1/2045	A		6,250		7,337,750
MI Fin Auth - Trinity Health		5.00%		12/1/2026	AA-		2,250		2,844,427
Miami-Dade Co Pub Facs - Jackson Health		5.00%		6/1/2026	Aa3		4,165		4,965,721
Monroeville Pa Fin Auth - UPMC Hlth		3.00%		2/15/2023	A		2,510		2,609,321
Montgomery Co IDA - Einstein Hlthcare		5.00%		1/15/2021	Ba1		2,000		2,001,420
Montgomery Co IDA - Jefferson Hlth		5.00%		9/1/2026	A		1,150		1,404,978
Montgomery Co IDA - Jefferson Hlth		5.00%		9/1/2027	A		1,500		1,882,815
Montgomery Co IDA - Jefferson Hlth		5.00%		9/1/2028	A		1,850		2,366,187
Montgomery Co IDA - Jefferson Hlth		5.00%		9/1/2029	A		1,000		1,294,420
Montgomery Co IDA - Whitemarsh		4.00%		1/1/2023	NR		300		306,513
NC Med - Southminster		5.00%		10/1/2023	NR		750		797,468
NC Med Care Comm - Wake Forest Baptist		2.20%	#(a)	12/1/2048	AA-		22,500		23,045,175
NJ Hlth - Hackensack Meridian Hlth		5.00%		7/1/2026	AA-		3,900		4,855,305
NJ Hlth - Hackensack Meridian Hlth		5.00%		7/1/2027	AA-		3,645		3,895,630
NJ Hlth - St Peters Univ Hsp		5.75%		7/1/2037	BB+		3,250		3,259,977
NJ Hlth - Univ Hosp (AGM)		5.00%		7/1/2021	AA		900		919,305
NJ Hlth Fin Auth - Valley Health		5.00%		7/1/2026	A		1,800		2,203,704
NJ Hlth Fin Auth - Valley Health		5.00%		7/1/2027	A		1,250		1,568,300
Northampton Co - St. Lukes Univ Hlth		1.148% (1 Mo. LIBOR * .70 + 1.04%	)#	8/15/2048	A-		8,000		8,030,640
NY Dorm - Montefiore		5.00%		9/1/2027	BBB		1,400		1,716,862
NY Dorm - Montefiore		5.00%		9/1/2028	BBB		1,500		1,872,480
NY Dorm - Montefiore		5.00%		9/1/2029	BBB		1,750		2,221,117
NY Dorm - Montefiore		5.00%		9/1/2030	BBB		2,200		2,782,406
NY Dorm - Montefiore Ob Group		5.00%		8/1/2024	BBB		1,500		1,700,640
NY Dorm - Orange Regl Med Ctr†		4.00%		12/1/2021	BBB-		1,700		1,743,044
NYC IDA - Yankee Stadium (AGM)		5.00%		3/1/2029	AA		2,000		2,598,080
OH Hosp Rev - University Hospitals		4.00%		1/15/2028	A		500		605,535
OH Hosp Rev - University Hospitals		5.00%		1/15/2026	A		500		607,895
OH Hosp Rev - University Hospitals		5.00%		1/15/2027	A		250		312,273
OK DFA - OU Med		5.00%		8/15/2025	Baa3		550		638,616

6 See Notes to Schedule of Investments.

Schedule of Investments (unaudited)(continued)

SHORT DURATION TAX FREE FUND December 31, 2020

Investments	Interest Rate			Maturity Date	Credit Rating: S&P or Moody’s		Principal Amount (000)		Fair Value
Health Care (continued)
OK DFA - OU Med		5.00%		8/15/2026	Baa3		$	800	$	951,672
Oneida Co - Mohawk Valley Hlth (AGM)		5.00%		12/1/2027	AA			1,400		1,577,114
Oneida Co - Mohawk Valley Hlth (AGM)		5.00%		12/1/2028	AA			1,000		1,122,450
Oneida Co - Mohawk Valley Hlth (AGM)		5.00%		12/1/2029	AA			1,000		1,119,920
Owensboro Health		5.00%		6/1/2025	Baa3			1,400		1,575,154
PA Hgr Ed - UPenn Hlth		5.00%		8/15/2027	AA			1,250		1,617,350
PA Hgr Ed - UPenn Hlth		5.00%		8/15/2028	AA			1,565		2,078,836
Palomar Hlth		5.00%		11/1/2021	BBB			500		517,210
Philadelphia Hsps - Temple Univ Hlth		5.00%		7/1/2027	BBB-			5,000		5,974,100
Sante Fe Retirement Facs - El Castillo		2.25%		5/15/2024	BB+	(b)		600		591,942
SE Port Auth - Memorial Hlth		5.00%		12/1/2022	BB-	(b)		1,575		1,654,963
South Miami Hlth Fac - Baptist Hlth		5.00%		8/15/2022	AA-			1,000		1,071,440
South Miami Hlth Fac - Baptist Hlth		5.00%		8/15/2023	AA-			1,350		1,509,584
Southcentral PA Auth - Wellspan Hlth		0.69% (MUNIPSA * 1  + .60%	)#	6/1/2049	Aa3			9,000		9,030,690
Tampa Hlth - Baycare Health		4.00%		11/15/2033	Aa2			11,250		11,633,625
Tulsa Co Industrial Auth - Montereau		5.00%		11/15/2026	BBB-	(b)		500		553,930
WA HFC - CommonSpirit		1.49% (MUNIPSA * 1  + 1.40%	)#	1/1/2035	BBB+			2,000		1,983,240
WA Hlth - Fred Hutchinson Cancer Ctr		1.198% (1 Mo. LIBOR * .67 + 1.10%	)#	1/1/2042	A+			4,000		4,014,760
WA Hsg - Transforming Age†		2.375%		1/1/2026	BB	(b)		1,275		1,257,533
WI Hlth & Ed - American Baptist		3.50%		8/1/2022	NR			275		276,317
WI Hlth & Ed - Marshfield Hlth		5.00%	#(a)	2/15/2052	A-			9,000		10,357,920
Total										275,098,341
Housing 4.38%
CA HFA - MFH		4.00%		3/20/2033	BBB+			1,674		1,888,354
CT State Hsg Fin Auth		4.00%		5/15/2049	AAA			5,325		6,075,133
MD State Hsg CDA		3.50%		3/1/2050	Aa1			9,965		10,967,778
MD State Hsg Dev Admn		4.00%		9/1/2049	Aa1			4,760		5,297,547
MI State Hsg Dev Auth		4.25%		12/1/2049	AA+			5,460		6,123,008
MN State Hsg Fin Agy (GNMA)		4.25%		7/1/2049	AA+			4,405		4,958,973
MO State Hsg Dev Cmmn (GNMA)		4.25%		5/1/2047	AA+			4,630		5,196,804
NC State Hsg Fin Agy (GNMA)		4.00%		1/1/2050	AA+			4,650		5,158,384

See Notes to Schedule of Investments. 7

Schedule of Investments (unaudited)(continued)

SHORT DURATION TAX FREE FUND December 31, 2020

Investments	Interest Rate			Maturity Date	Credit Rating: S&P or Moody’s	Principal Amount (000)		Fair Value
Housing (continued)
ND State Hsg Fin Agy		4.00%		1/1/2050	Aa1	$	4,825	$	5,520,717
NY Mortgage Rev		3.50%		4/1/2049	Aa1		2,040		2,188,206
NYC HDC		0.70%	#(a)	5/1/2060	AA+		2,000		1,999,360
NYS HFA L-2		0.75%		11/1/2025	Aa2		12,000		12,005,280
NYS HFA M-2		0.75%		11/1/2025	Aa2		5,000		5,002,200
OH State Fin Agy		4.50%		3/1/2050	Aaa		4,865		5,510,002
Phoenix IDA - ASU Std Hsg		5.00%		7/1/2023	Baa3		100		106,395
Phoenix IDA - ASU Std Hsg		5.00%		7/1/2026	Baa3		175		196,259
SC State Hsg Fin Auth		4.00%		1/1/2050	Aaa		4,550		5,163,158
TN HDA		3.00%		1/1/2051	AA+		5,350		5,886,284
Total									89,243,842
Lease Obligations 3.44%
Broome Delaware & Tiago Co BOCES		1.25%		4/30/2021	NR		6,000		6,019,680
CA Pub Wks - Lease Rev		5.00%		10/1/2026	Aa3		1,500		1,893,840
CA Pub Wks - Lease Rev		5.00%		10/1/2027	Aa3		3,300		4,287,228
Comm of PA COPS		5.00%		7/1/2023	A		500		557,980
Comm of PA COPS		5.00%		7/1/2025	A		500		595,605
NJ EDA - Sch Facs		5.00%		6/15/2021	Baa1		4,490		4,581,596
NJ EDA - Sch Facs		5.00%		3/1/2022	Baa1		2,310		2,430,443
NJ EDA - Sch Facs		5.00%		6/15/2022	Baa1		515		548,465
NJ EDA - Sch Facs		5.00%		6/15/2022	Baa1		900		958,482
NJ EDA - Sch Facs		5.00%		11/1/2022	Baa1		3,275		3,536,345
NJ EDA - Sch Facs		5.00%		3/1/2023	Baa1		3,565		3,902,249
NJ EDA - Sch Facs		5.00%		3/1/2025	Baa1		5,205		5,645,291
NJ EDA - Sch Facs		5.00%		6/15/2025	Baa1		1,250		1,470,612
NJ EDA - Sch Facs		5.00%		6/15/2026	Baa1		4,000		4,792,120
NJ Trans Trust Fund		5.00%		6/15/2021	A+		4,500		4,587,750
NJ Trans Trust Fund		5.00%		12/15/2023	Baa1		1,250		1,406,388
NJ Trans Trust Fund		5.00%		12/15/2024	Baa1		7,000		8,082,620
NJ Trans Trust Fund		5.00%		12/15/2025	Baa1		12,500		14,824,875
Total									70,121,569
Other Revenue 3.52%
Black Belt Energy Gas District: Gas Prepay Revenue Bonds (Project #4)		4.00%	#(a)	12/1/2049	A2		12,325		14,234,019
CA St Infra - LA Co Museum of Art		0.751%  (1 Mo. LIBOR *  .70 + .65%	)#	12/1/2050	A3		4,000		3,999,960

8 See Notes to Schedule of Investments.

Schedule of Investments (unaudited)(continued)

SHORT DURATION TAX FREE FUND December 31, 2020

Investments	Interest Rate			Maturity Date	Credit Rating: S&P or Moody’s	Principal Amount (000)		Fair Value
Other Revenue (continued)
Clifton Higher Ed - Intl Ldrshp Sch		5.25%		8/15/2026	NR	$	1,605	$	1,876,068
Clifton Higher Ed - Intl Ldrshp Sch		5.25%		8/15/2028	NR		1,920		2,222,880
Indianapolis Local Pub Impt Bd Bk		5.00%		6/1/2022	A1		4,040		4,111,185
Lower AL Gas Dist - Goldman Sachs		4.00%	#(a)	12/1/2050	A3		19,250		22,230,478
Main St Nat Gas - Macquarie		5.00%		5/15/2025	A3		4,850		5,696,956
Maricopa Co - Legacy Schools†		4.00%		7/1/2029	BB+		500		548,540
Patriots Energy Group - RBC		4.00%	#(a)	10/1/2048	Aa2		8,000		8,809,120
Pima Co IDA - Edkey Chtr Sch†		3.50%		7/1/2025	NR		1,605		1,638,464
TX Muni Gas Acq & Supply - Macquarie		5.00%		12/15/2022	A3		5,800		6,301,294
Total									71,668,964
Special Tax 1.21%
Allentown Neighborhood Impt†		5.00%		5/1/2022	Ba3		555		574,303
Allentown Neighborhood Impt†		5.00%		5/1/2023	Ba3		190		201,385
Allentown Neighborhood Impt†		5.00%		5/1/2028	NR		4,550		5,081,212
CT Spl Tax - Trans Infra		5.00%		10/1/2022	A+		3,400		3,681,282
CT Spl Tax - Trans Infra		5.00%		1/1/2026	A+		5,000		6,113,300
NYC IDA - Yankee Stadium (AGM)		5.00%		3/1/2030	AA		1,600		2,115,312
NYC IDA - Yankee Stadium (NPFGC)(FGIC)		2.062% (CPI Based	)#	3/1/2026	Baa1		2,000		2,054,700
Peninsula Town Center†		4.00%		9/1/2023	NR		210		212,447
Village CDD #12†		3.25%		5/1/2023	NR		490		500,378
Village CDD #13†		1.875%		5/1/2025	NR		2,355		2,386,157
Village CDD #13		2.625%		5/1/2024	NR		250		254,802
Village CDD #13†		2.625%		5/1/2030	NR		1,500		1,550,580
Total									24,725,858
Tax Revenue 7.32%
City of Sparks - Legends at Sparks Marina†		2.50%		6/15/2024	Ba2		135		135,635
City of Sparks - Legends at Sparks Marina†		2.75%		6/15/2028	Ba2		300		302,403
CT Spl Tax - Trans Infra		5.00%		5/1/2025	A+		850		1,015,520
CT Spl Tax - Trans Infra		5.00%		5/1/2026	A+		1,300		1,605,682
IL State Sales Tax		5.00%		6/15/2024	BBB		7,260		8,121,689
Jefferson Co - Sch Warrant		5.00%		9/15/2023	AA		2,000		2,245,520
MD Dept Trans		4.00%		9/1/2026	AAA		4,750		5,722,325
Nassau Co RANS		4.00%		3/15/2021	NR		12,000		12,088,920
NY Dorm - PIT		5.00%		3/31/2021	NR		57,000		57,672,030
Phildelphia SD TRANS		4.00%		6/30/2021	NR		12,000		12,225,120

See Notes to Schedule of Investments. 9

Schedule of Investments (unaudited)(continued)

SHORT DURATION TAX FREE FUND December 31, 2020

Investments	Interest Rate		Maturity Date	Credit Rating: S&P or Moody’s		Principal Amount (000)		Fair Value
Tax Revenue (continued)
SC Transportation Infra Bank	4.00%		10/1/2033	Aa3		$	12,000	$	12,249,600
TX State GO TRANS	4.00%		8/26/2021	NR			30,000		30,749,700
VA Small Bus Fing - NTL Senior Lvg	5.00%		1/1/2023	A	(b)		925		1,006,363
VA Small Bus Fing - NTL Senior Lvg	5.00%		1/1/2025	A	(b)		1,300		1,520,636
VA Small Bus Fing - NTL Senior Lvg	5.00%		1/1/2027	A	(b)		1,000		1,237,900
VA Small Bus Fing - NTL Senior Lvg	5.00%		1/1/2028	A	(b)		1,100		1,384,416
Total									149,283,459
Tobacco 1.91%
Los Angeles Co Tobacco	1.75%		6/1/2030	BBB+			750		787,920
Los Angeles Co Tobacco	5.00%		6/1/2024	A			600		694,776
Los Angeles Co Tobacco	5.00%		6/1/2025	A			650		781,189
Los Angeles Co Tobacco	5.00%		6/1/2026	A			1,125		1,397,194
PA Tob Settlement	5.00%		6/1/2022	A1			2,250		2,391,255
PA Tob Settlement	5.00%		6/1/2023	A1			1,125		1,244,846
PA Tob Settlement	5.00%		6/1/2024	A1			5,000		5,748,850
Railsplitter Tobacco Settlement Auth	5.25%		6/1/2021	A			16,010		16,326,998
Suffolk Tobacco Asset Sec Corp	5.375%		6/1/2028	NR			4,000		4,001,280
Tobacco Settlement Fin Corp NJ	3.20%		6/1/2027	BBB			3,875		3,983,074
TSASC	5.00%		6/1/2021	A			1,500		1,527,060
Total									38,884,442
Transportation 9.30%
Bay Area Toll Auth	0.708% (3 Mo. LIBOR * .70 + .55%	)#	4/1/2045	AA			10,800		10,800,864
Bay Area Toll Auth	1.34% (MUNIPSA * 1 + 1.25%	)#	4/1/2036	AA			2,375		2,410,625
Bay Area Toll Auth	4.00%		4/1/2029	AA-			1,200		1,431,072
Central TX Mobility Auth	4.00%		1/1/2022	BBB+			5,000		5,077,150
Chesapeake Bay Bridge Dist	5.00%		11/1/2023	BBB			9,000		10,067,040
Chicago O’Hare Arpt	5.00%		1/1/2029	A			2,500		2,608,800
Chicago O’Hare Arpt	5.00%		1/1/2031	A			4,750		4,951,875
Chicago Trans Auth	5.00%		6/1/2025	A			2,000		2,359,340
Cleveland Arpt (AGM)	5.00%		1/1/2022	AA			455		473,418
Denver RTD - Eagle P3	3.00%		1/15/2026	Baa2			900		1,001,025
Denver RTD - Eagle P3	5.00%		7/15/2027	Baa2			1,000		1,252,200
Denver RTD - Eagle P3	5.00%		7/15/2029	Baa2			1,100		1,429,945

10 See Notes to Schedule of Investments.

Schedule of Investments (unaudited)(continued)

SHORT DURATION TAX FREE FUND December 31, 2020

Investments	Interest Rate		Maturity Date	Credit Rating: S&P or Moody’s	Principal Amount (000)		Fair Value
Transportation (continued)
E470 Pub Hwy Auth	0.516% (1 Mo. LIBOR * ..67 + .42%	)#	9/1/2039	A	$	6,000	$	5,994,060
E470 Pub Hwy Auth	1.148% (1 Mo. LIBOR * ..67 + 1.05%	)#	9/1/2039	A		2,000		2,001,480
Grand Parkway Trans Corp	5.00%		2/1/2023	BBB		10,030		10,902,811
IL State GO	5.00%		11/1/2025	BBB-		3,000		3,351,630
Illinois St Toll Hwy Auth	5.00%		1/1/2024	AA-		7,215		8,202,373
LA Offshore Term Auth - LOOP	1.65%	#(a)	9/1/2027	A3		3,500		3,555,055
LA Offshore Term Auth - LOOP	2.00%	#(a)	10/1/2040	BBB+		2,000		2,019,840
MTA NY	5.00%		5/15/2022	NR		7,050		7,331,647
MTA NY	5.00%		9/1/2022	NR		6,630		6,950,627
MTA NY	5.00%		11/15/2033	A3		5,400		5,737,986
MTA NY	5.00%	#(a)	11/15/2045	A3		13,000		15,806,180
NC Tpk Auth - Triangle Exprs	5.00%		2/1/2024	BBB		14,000		15,881,040
NC Tpk Auth - Triangle Exprs (AGM)	5.00%		1/1/2028	AA		1,500		1,844,955
NJ Tpk Auth	0.858% (1 Mo. LIBOR * ..70 + .75%	)#	1/1/2030	A+		2,500		2,502,150
NJ Tpk Auth	5.00%		1/1/2027	A+		3,200		4,022,880
NJ Trans Trust Fund	1.29% (MUNIPSA * 1 + 1.20%	)#	6/15/2034	Baa1		10,030		10,038,225
NJ Trans Trust Fund	5.00%		6/15/2023	A+		7,210		7,934,533
NY Trans Dev Corp - JFK IAT	5.00%		12/1/2024	Baa1		1,000		1,162,470
NY Trans Dev Corp - JFK IAT	5.00%		12/1/2026	Baa1		1,000		1,226,240
NY Trans Dev Corp - JFK IAT	5.00%		12/1/2028	Baa1		1,140		1,451,699
PA Tpk Commn	5.00%		12/1/2025	A1		150		184,089
PA Tpk Commn	5.00%		12/1/2026	A1		400		506,744
Port Auth NY & NJ	5.00%		1/15/2041	Aa3		21,515		21,572,660
Triborough Brdg & Tunl Auth (NPFGC)(FGIC)	5.50%		11/15/2021	A+		1,650		1,723,870
TX Surface Trans Corp - I-635	4.00%		12/31/2030	Baa2		3,000		3,720,300
Total								189,488,898
Utilities 15.78%
American Muni Pwr - Hydroelec Proj	2.25%	#(a)	2/15/2048	A		6,500		6,512,025
American Muni Pwr - Prairie St TCRS (BAM)	5.25%		2/15/2030	AA		2,500		2,641,775
Appling Co Dev - Oglethorpe Power	1.50%	#(a)	1/1/2038	BBB+		1,250		1,276,850

See Notes to Schedule of Investments. 11

Schedule of Investments (unaudited)(continued)

SHORT DURATION TAX FREE FUND December 31, 2020

Investments	Interest Rate		Maturity Date	Credit Rating: S&P or Moody’s	Principal Amount (000)		Fair Value
Utilities (continued)
Central Plains - Goldman Sachs	5.00%		9/1/2027	BBB+	$	1,305	$	1,624,738
Chicago Wastewater	5.00%		1/1/2021	A		1,000		1,000,000
Chicago Wastewater	5.00%		1/1/2022	A		2,000		2,086,220
Chicago Water	5.00%		11/1/2022	A		1,000		1,073,550
Chicago Water	5.00%		11/1/2022	A		5,680		6,097,764
Chicago Water (AGM)	5.00%		11/1/2028	AA		2,500		3,142,000
City of Rockport Poll Ctl - IN MI Pwr	3.05%		6/1/2025	A-		3,500		3,858,225
Cleveland Public Pwr (AGM)	5.00%		11/15/2026	AA		1,190		1,503,208
Cleveland Public Pwr (AGM)	5.00%		11/15/2027	AA		2,280		2,957,502
Cleveland Public Pwr (AGM)	5.00%		11/15/2028	AA		2,000		2,651,520
Cleveland Public Pwr (AGM)	5.00%		11/15/2029	AA		1,000		1,354,440
DE EDA - Delmarva Pwr & Light	1.05%	#(a)	1/1/2031	A		6,315		6,473,443
DE EDA - NRG Energy	1.25%	#(a)	10/1/2040	BBB-		10,000		10,160,600
DE EDA - NRG Energy	1.25%	#(a)	10/1/2045	BBB-		11,000		11,170,170
Detroit Water	5.00%		7/1/2021	AA-		420		429,719
Detroit Water	5.00%		7/1/2022	AA-		500		535,040
Escambia Co PCR - Gulf Power	2.60%		6/1/2023	A		3,000		3,155,850
Farmington Poll Ctl - NM Pub Svc	1.875%	#(a)	4/1/2033	BBB		4,000		4,040,200
KY Muni Pwr - Prairie State Proj	3.45%	#(a)	9/1/2042	Baa1		1,700		1,819,646
KY PCR - KY Util Comp	1.55%	#(a)	9/1/2042	A1		11,250		11,424,375
KY Public Energy Auth - BP	4.00%	#(a)	1/1/2049	A1		1,775		1,995,934
KY Public Energy Auth - Morgan Stanley	4.00%	#(a)	4/1/2048	A2		3,110		3,440,095
LA Env Facs - E Baton Rouge Swr	0.875%	#(a)	2/1/2046	A+		15,000		15,036,600
Lehigh Co IDA - PPL Elec Util	1.80%	#(a)	2/15/2027	A1		10,660		10,897,718
Long Island Power Auth	0.85%	#(a)	9/1/2050	A		9,000		9,072,540
Long Island Power Auth	0.858% (1 Mo. LIBOR * ..70 + .75%	)#	5/1/2033	A		10,000		10,012,900
Long Island Power Auth	5.00%		9/1/2026	A		500		629,055
Long Island Power Auth	5.00%		9/1/2027	A		500		646,595
Louisa VA IDA - VA Elec & Pwr CO	0.75%	#(a)	11/1/2035	A2		6,000		6,079,140
Louisa VA IDA - VA Elec & Pwr CO	1.90%	#(a)	11/1/2035	A2		5,000		5,186,300
Louisville/Jeff Co Poll Ctrl - Louisville	1.85%	#(a)	10/1/2033	A1		5,000		5,013,650
Main St Nat Gas - Citibank	4.00%	#(a)	3/1/2050	A3		15,000		17,624,400
Mason Cnty Poll Ctrl - Appalachian Power	2.75%		10/1/2022	A-		27,500		28,613,475
MEAG - Proj 1	5.00%		1/1/2021	A2		7,000		7,000,000
Monroe Dev Auth - Oglethorpe Power	1.50%	#(a)	1/1/2039	BBB+		1,875		1,915,275

12 See Notes to Schedule of Investments.

Schedule of Investments (unaudited)(continued)

SHORT DURATION TAX FREE FUND December 31, 2020

Investments		Interest Rate		Maturity Date	Credit Rating: S&P or Moody’s	Principal Amount (000)		Fair Value
Utilities (continued)
NE Public Power		0.60%	#(a)	1/1/2051	A+	$	15,000	$	15,055,050
Northern CA Gas - Goldman Sachs		4.00%	#(a)	7/1/2049	A3		5,000		5,574,250
NY Elec Sys - LIPA		1.65%	#(a)	9/1/2049	A		4,000		4,157,680
Philadelphia Gas Works		5.00%		8/1/2023	A		850		949,943
Philadelphia Gas Works		5.00%		8/1/2024	A		800		922,496
Philadelphia Water & Wastewater (AGM)		0.74% (MUNIPSA * 1 + .65%	)#	9/1/2040	AA		17,500		17,546,550
PR Aqueduct & Swr Auth		5.00%		7/1/2022	Ca		2,000		2,107,500
PR Elec Pwr Auth(c)		5.25%		7/1/2018	NR		2,000		1,595,000
Rockport IN Wtr Pollution Ctl		1.35%	#(a)	7/1/2025	A-		2,000		2,016,060
Rockport IN Wtr Pollution Ctl		1.35%	#(a)	7/1/2025	A-		2,150		2,167,437
SA Energy Acquisition Pub Fac - Goldman Sachs		5.50%		8/1/2021	A3		4,350		4,478,978
San Antonio Elec & Gas		1.75%	#(a)	2/1/2049	Aa2		10,750		11,322,008
San Antonio Elec & Gas		2.75%	#(a)	2/1/2048	Aa2		8,000		8,383,120
San Antonio Water System		2.625%	#(a)	5/1/2049	AA		11,415		12,262,792
Wise Co IDA - VA Elec & Pwr CO		0.75%	#(a)	10/1/2040	A2		12,000		12,119,640
WV EDA - Appalachian Pwr		2.55%	#(a)	3/1/2040	A-		2,000		2,132,100
WV EDA - Appalachian Pwr		2.625%	#(a)	12/1/2042	A-		3,000		3,094,110
York Co VA IDA - VA Elec & Pwr CO		1.90%	#(a)	5/1/2033	A2		5,500		5,701,190
Total									321,738,441
Total Municipal Bonds (cost $1,794,235,107)									1,844,398,493
	Interest Rate#	Interest Rate Reset Date(d)		Final Maturity Date
SHORT-TERM INVESTMENTS 8.14%
Variable Rate Demand Notes 8.14%
Corporate-Backed 0.05%
PSL North America	3.63%	1/7/2021		11/1/2032	BBB-		1,000		1,000,000
General Obligation 1.65%
NYC GO	0.08%	1/4/2021		12/1/2047	AA		13,050		13,050,000
NYC GO ARS	0.33%	1/4/2021		10/1/2046	AA		20,600		20,600,000
Total									33,650,000

See Notes to Schedule of Investments. 13

Schedule of Investments (unaudited)(continued)

SHORT DURATION TAX FREE FUND December 31, 2020

Investments	Interest Rate#	Interest Rate Reset Date(d)	Final Maturity Date	Credit Rating: S&P or Moody’s	Principal Amount (000)		Fair Value
Health Care 4.27%
AL Hlth Care Auth - Baptist Health	0.35%	1/7/2021	11/1/2042	A3	$	17,055	$	17,055,000
AR DFA - Baptist Mem Hlth	0.36%	1/7/2021	9/1/2044	BBB+		46,906		46,906,000
Lee Memorial Hlth System	0.22%	1/7/2021	4/1/2049	A+		18,780		18,780,000
NYC Muni Water	0.10%	1/4/2021	6/15/2045	AAA		4,400		4,400,000
Total								87,141,000
Tax Revenue 0.48%
DE Valley Regional Fin Auth	0.21%	1/7/2021	11/1/2055	A+		9,700		9,700,000
Transportation 0.34%
Triborough Brdg & Tunl Auth	0.11%	1/4/2021	1/1/2032	Aa1		6,880		6,880,000
Utilities 1.35%
Appling Co Dev - GA Power	0.14%	1/4/2021	9/1/2041	A-		15,150		15,150,000
NYC Muni Water	0.11%	1/4/2021	6/15/2049	AA+		5,350		5,350,000
NYC Muni Water	0.11%	1/4/2021	6/15/2049	AA+		6,950		6,950,000
Total								27,450,000
Total Short-Term Investments (cost $165,821,000)								165,821,000
Total Investments in Securities 98.61% (cost $1,960,056,107)								2,010,219,493
Cash and Other Assets in Excess of Liabilities 1.39%								28,411,714
Net Assets 100.00%							$	2,038,631,207

AGM	Insured by - Assured Guaranty Municipal Corporation.
AMBAC	Insured by - AMBAC Assurance Corporation.
BAM	Insured by - Build America Mutual.
COP	Certificates of Participation.
CPI	Consumer Price Index: Rate fluctuate based on CPI.
FGIC	Insured by - Financial Guaranty Insurance Company.
GNMA	Government National Mortgage Association.
LIBOR	London Interbank Offered Rate.
MUNIPSA	SIFMA Municipal Swap Index Yield.
NPFGC	Insured by - National Public Finance Guarantee Corporation.
NR	Not Rated.
SIFMA	Insured by - Securities Industry and Financial Markets Association.
TCRS	Transferable Custodial Receipt.

#	Variable rate security. The interest rate represents the rate in effect at December 31, 2020.
†	Security was purchased pursuant to Rule 144A under the Securities Act of 1933 and, unless registered under such Act or exempted from registration, may only be resold to qualified institutional buyers. At December 31, 2020, the total value of Rule 144A securities was $25,924,670, which represents 1.27% of net assets.

14 See Notes to Schedule of Investments.

Schedule of Investments (unaudited)(concluded)

SHORT DURATION TAX FREE FUND December 31, 2020

(a)	Variable Rate is Fixed to Float: Rate remains fixed or at Zero Coupon until designated future date.
(b)	This investment has been rated by Fitch IBCA.
(c)	Defaulted (non-income producing security).
(d)	The interest rate reset date shown represents the date in which the Fund has the right to sell a Variable Rate Demand Note (“VRDN”) back to the issuer for Principal Amount. The interest rate on the VRDN is generally reset daily based on the SIFMA Municipal Swap Index.

The following is a summary of the inputs used as of December 31, 2020 in valuing the Fund’s investments carried at fair value⁽¹⁾:

Investment Type(2)	Level 1		Level 2		Level 3		Total
Municipal Bonds	$	-	$	1,844,398,493	$	-	$	1,844,398,493
Short-Term Investments
Variable Rate Demand Notes		-		165,821,000		-		165,821,000
Total	$	-	$	2,010,219,493	$	-	$	2,010,219,493

(1)	Refer to Note 2(b) for a description of fair value measurements and the three-tier hierarchy of inputs.
(2)	See Schedule of Investments for fair values in each industry.

A reconciliation of Level 3 investments is presented when the Fund has a material amount of Level 3 investments at the beginning or end of the period in relation to the Fund’s net assets.

See Notes to Schedule of Investments. 15

Schedule of Investments (unaudited)

INTERMEDIATE TAX FREE FUND December 31, 2020

Investments	Interest Rate		Maturity Date	Credit Rating: S&P or Moody’s	Principal Amount (000)		Fair Value
MUNICIPAL BONDS 98.23%
Corporate-Backed 8.39%
AL IDA - Office Max Rmkt AMT	6.45%	#(a)	12/1/2023	B1	$	2,300	$	2,300,483
Allegheny Co IDA - US Steel	4.875%		11/1/2024	B-		3,300		3,322,044
AZ IDA	3.625%		5/20/2033	BBB		14,705		15,756,192
Build NYC Res Corp - Pratt Paper AMT†	4.50%		1/1/2025	NR		2,950		3,148,093
Build NYC Res Corp - Pratt Paper AMT†	5.00%		1/1/2035	NR		550		611,171
Burke Co Dev - Oglethorpe Power	1.50%	#(a)	1/1/2040	BBB+		3,750		3,830,550
CA MFA - Waste Mgmt AMT	2.40%	#(a)	10/1/2044	A-		12,350		13,722,702
CA Poll Ctl - Waste Mgmt AMT	3.00%		11/1/2025	A-		9,850		10,966,990
Chandler AZ IDA - Intel Corp AMT	2.70%	#(a)	12/1/2037	A+		7,250		7,660,857
Citizens Property Insurance Corp	5.00%		6/1/2022	A+		12,500		13,041,375
Downtown Doral CDD†	4.25%		12/15/2028	NR		250		271,818
Downtown Doral CDD†	4.75%		12/15/2038	NR		625		720,181
FL DFC - Waste Pro AMT†	5.00%		5/1/2029	NR		1,640		1,781,876
Gloucester Co Poll Ctl - Logan AMT	5.00%		12/1/2024	BBB-		1,345		1,420,428
Greater Orlando Aviation - Jet Blue AMT	5.00%		11/15/2026	NR		2,980		3,117,169
Hoover IDA - US Steel AMT	6.375%	#(a)	11/1/2050	B-		10,850		11,750,441
Houston Arpt - United Airlines AMT	5.00%		7/1/2029	Ba3		2,295		2,438,828
IA Fin Auth - Alcoa	4.75%		8/1/2042	BB+		1,250		1,291,900
IA Fin Auth - Iowa Fertilizer Co	3.125%		12/1/2022	BB-		1,500		1,536,480
IA Fin Auth - Iowa Fertilizer Co	5.25%		12/1/2025	BB-		10,000		10,913,100
IA Fin Auth - Iowa Fertilizer Co†	5.875%		12/1/2026	BB-		3,365		3,471,839
IL Fin Auth - Navistar†	4.75%	#(a)	10/15/2040	B3		13,750		14,687,200
IN Fin Auth - OVEC	3.00%		11/1/2030	Ba1		1,600		1,711,888
IN Fin Auth - OVEC	3.00%		11/1/2030	Ba1		2,000		2,139,860
IN Fin Auth - OVEC	3.00%		11/1/2030	Ba1		3,350		3,584,266
IN Fin Auth - US Steel AMT	6.75%		5/1/2039	B-		1,500		1,629,165
Indianapolis Local Pub Impt - IND Arpt AMT	5.00%		1/1/2026	A1		9,425		10,935,733
Indianapolis Local Pub Impt - IND Arpt AMT	5.00%		1/1/2027	A1		8,300		9,577,453
LA Citizens Property Insurance Corp (AGM)	5.00%		6/1/2022	AA		2,000		2,134,380
LA Env Facs - Westlake Chem	3.50%		11/1/2032	Baa2		9,850		10,926,999
LA St John Parish - Marathon Oil	2.125%	#(a)	6/1/2037	BBB-		6,850		7,025,634
LA St John Parish - Marathon Oil	2.20%	#(a)	6/1/2037	BBB-		12,500		12,912,625
LA St John Parish - Marathon Oil	2.375%	#(a)	6/1/2037	BBB-		5,975		6,227,025

16 See Notes to Schedule of Investments.

Schedule of Investments (unaudited)(continued)

INTERMEDIATE TAX FREE FUND December 31, 2020

Investments	Interest Rate		Maturity Date	Credit Rating: S&P or Moody’s	Principal Amount (000)			Fair Value
Corporate-Backed (continued)
Liberty Dev Corp - Goldman Sachs	5.25%		10/1/2035	A3	$	6,815		$	9,913,235
Love Field Arpt - Southwest Airlines AMT	5.00%		11/1/2028	Baa1		1,800	��		1,933,740
Matagorda Co Nav Dist - AEP TX Central	2.60%		11/1/2029	A-		3,800			4,142,038
Matagorda Co Nav Dist - AEP TX Central	4.00%		6/1/2030	A-		8,000			8,479,840
Matagorda Co Nav Dist - AEP TX Central (AMBAC)	4.40%		5/1/2030	A-		3,500			4,354,525
MD EDC - Chesapeake Bay Hyatt(b)	5.00%		12/1/2016	NR		2,570			1,542,000	(c)
Met Govt Nashville & Davidson Cnty	4.00%		7/1/2034	AA		10,000			12,050,700
Mission Econ Dev Corp - Natgasoline AMT†	4.625%		10/1/2031	BB-		10,000			10,633,600
Nez Perce Co Poll Ctl - Potlatch	2.75%		10/1/2024	BBB-		10,500			10,858,995
NH National Fin Auth - Covanta†	3.625%	#(a)	7/1/2043	B1		980			992,368
NH National Fin Auth - Covanta AMT†	3.75%	#(a)	7/1/2045	B1		1,970			1,996,181
NH National Fin Auth - Covanta AMT†	4.00%		11/1/2027	B1		4,225			4,391,381
NH National Fin Auth - Hsg Sec	4.125%		1/20/2034	NR		4,940			5,550,998
Niagara Area Dev Corp - Covanta†	3.50%		11/1/2024	B1		4,650			4,791,732
Niagara Area Dev Corp - Covanta AMT†	4.75%		11/1/2042	B1		5,500			5,687,715
NJ EDA - Continental Airlines AMT	5.25%		9/15/2029	Ba3		11,320			11,983,918
NJ EDA - Continental Airlines AMT	5.50%		6/1/2033	Ba3		1,500			1,602,045
NJ EDA - Sch Facs	5.00%		6/15/2030	Baa1		2,000			2,401,460
NJ EDA - Sch Facs	5.00%		6/15/2033	Baa1		2,000			2,370,740
NY Energy RDA - NYSEGC	3.50%		10/1/2029	A-		8,200			9,761,690
NY Env Facs - Casella Waste AMT	2.75%	#(a)	9/1/2050	B		1,600			1,656,624
NY Env Facs - Casella Waste AMT†	2.875%	#(a)	12/1/2044	B		2,000			2,057,940
NY Liberty Dev Corp - 3 WTC†	5.15%		11/15/2034	NR		1,875			2,025,844
NY Liberty Dev Corp - 3 WTC†	7.25%		11/15/2044	NR		1,920			2,119,392
NY Trans Dev Corp - American Airlines AMT	5.00%		8/1/2026	B-		3,000			3,049,350
NY Trans Dev Corp - American Airlines AMT	5.25%		8/1/2031	B-		2,300			2,602,933
NY Trans Dev Corp - American Airlines AMT	5.375%		8/1/2036	B-		1,850			2,104,209
NYC IDA - TRIPS AMT	5.00%		7/1/2022	BBB+		2,330			2,477,652
NYC IDA - TRIPS AMT	5.00%		7/1/2028	BBB+		3,500			3,671,150
OH Air Dev Auth - AEP	1.90%	#(a)	5/1/2026	BBB+		3,285			3,437,030
OH Air Dev Auth - AEP	2.40%	#(a)	12/1/2038	BBB+		4,500			4,773,825
OH Air Dev Auth - AEP AMT	2.50%	#(a)	11/1/2042	BBB+		5,800			6,367,356
OH Air Dev Auth - AEP AMT	2.60%	#(a)	6/1/2041	BBB+		19,250			20,441,767

See Notes to Schedule of Investments. 17

Schedule of Investments (unaudited)(continued)

INTERMEDIATE TAX FREE FUND December 31, 2020

Investments	Interest Rate		Maturity Date	Credit Rating: S&P or Moody’s	Principal Amount (000)		Fair Value
Corporate-Backed (continued)
OH Air Quality - Pratt Paper AMT†	3.75%		1/15/2028	NR	$	1,600	$	1,766,304
OH Air Quality - Pratt Paper AMT†	4.25%		1/15/2038	NR		4,955		5,507,284
OK DFA - Waste Mgmt	2.375%	#(a)	12/1/2021	A-		1,665		1,688,310
PA EDA - Covanta AMT†	3.25%		8/1/2039	B1		1,035		1,038,105
PA EDA - Procter & Gamble AMT	5.375%		3/1/2031	AA-		1,365		1,860,727
Parish of St James - Nustar Logistics†	5.85%	#(a)	8/1/2041	BB-		1,000		1,117,640
Parish of St James - Nustar Logistics†	6.10%	#(a)	6/1/2038	BB-		1,500		1,850,850
Parish of St James - Nustar Logistics†	6.10%	#(a)	12/1/2040	BB-		2,500		3,084,750
Richland Co Env Impt - Intl Paper AMT	3.875%		4/1/2023	BBB		6,715		7,242,530
Rockdale Co Dev Auth - Pratt Paper AMT†	4.00%		1/1/2038	NR		5,205		5,744,967
Salem Co Poll Ctl - Chambers AMT	5.00%		12/1/2023	BBB		5,575		5,885,806
Selma IDB - Intl Paper	2.00%	#(a)	11/1/2033	BBB		1,000		1,057,780
St Charles Parish - Valero Energy	4.00%	#(a)	12/1/2040	BBB		10,435		10,839,252
Tuscaloosa IDA - Hunt Refining†	5.25%		5/1/2044	NR		6,950		7,945,240
VA Small Bus Fing - Covanta AMT†	5.00%	#(a)	1/1/2048	B		440		456,346
Valdez Marine Term - BP	5.00%		1/1/2021	A1		10,000		10,000,000
Valparaiso Facs - Pratt Paper AMT	5.875%		1/1/2024	NR		640		684,397
Valparaiso Facs - Pratt Paper AMT	6.75%		1/1/2034	NR		5,000		5,688,850
Warren Co - Intl Paper	2.90%	#(a)	9/1/2032	BBB		7,500		7,990,650
West Pace Coop Dist(b)	9.125%		5/1/2039	NR		4,900		3,724,000	(c)
Whiting Env Facs - BP AMT	5.00%	#(a)	11/1/2045	A1		6,855		7,438,703
Whiting Env Facs - BP Rmkt	5.25%		1/1/2021	A1		5,000		5,000,000
WI PFA - American Dream†	5.00%		12/1/2027	NR		7,000		6,307,140
WI PFA - American Dream†	6.75%		12/1/2042	NR		5,000		4,447,600
WI PFA - Celanese AMT	5.00%		12/1/2025	BBB-		6,500		7,635,940
WI PFA - TRIPS AMT	5.25%		7/1/2028	BBB+		3,750		3,931,800
Total								488,725,689
Education 4.15%
CA Fin Auth - Biola Univ	5.00%		10/1/2028	Baa1		420		464,117
CA Fin Auth - Biola Univ	5.00%		10/1/2030	Baa1		430		473,043
CA State Univ Sys	5.00%		11/1/2026	Aa2		2,750		3,369,080
Cap Trust Ed - Renaissance Charter†	5.00%		6/15/2039	NR		2,160		2,332,649
Chicago Brd Ed	5.00%		12/1/2034	BB-		3,000		3,406,830
Chicago Brd Ed	5.00%		12/1/2036	BB-		9,000		10,167,750
Cleveland State Univ	5.00%		6/1/2024	A+		1,775		1,849,390
Clifton Higher Ed - Intl Ldrshp Sch	5.125%		8/15/2030	NR		3,500		4,011,000

18 See Notes to Schedule of Investments.

Schedule of Investments (unaudited)(continued)

INTERMEDIATE TAX FREE FUND December 31, 2020

Investments	Interest Rate	Maturity Date	Credit Rating: S&P or Moody’s	Principal Amount (000)		Fair Value
Education (continued)
CT Hlth & Ed - Quinnipiac Univ	5.00%	7/1/2033	A-	$	8,230	$	9,456,682
Dutchess Co LDC - Bard College†	5.00%	7/1/2040	BB+		1,150		1,281,376
Dutchess Co LDC - Bard College†	5.00%	7/1/2045	BB+		2,000		2,208,120
Frederick Co Ed Fac - Mount St Mary’s Univ†	5.00%	9/1/2027	BB+		2,000		2,177,800
Frederick Co Ed Fac - Mount St Mary’s Univ†	5.00%	9/1/2032	BB+		2,400		2,626,896
Fulton Co Dev - GA Tech Athletic Assoc	5.00%	10/1/2022	A2		215		230,794
IL Fin Auth - IL Inst of Tech	4.00%	9/1/2035	Baa3		2,600		2,884,700
IL Fin Auth - IL Inst of Tech	5.00%	9/1/2030	Baa3		625		776,131
IL Fin Auth - IL Inst of Tech	5.00%	9/1/2031	Baa3		600		740,244
IL Fin Auth - IL Inst of Tech	5.00%	9/1/2032	Baa3		500		612,870
IL Fin Auth - IL Inst of Tech	5.00%	9/1/2033	Baa3		1,000		1,219,550
IL Fin Auth - IL Inst of Tech	5.00%	9/1/2034	Baa3		2,620		3,186,025
IL Fin Auth - IL Inst of Tech	5.00%	9/1/2036	Baa3		3,225		3,899,154
IL Fin Auth - Loyola Univ Chicago	5.00%	7/1/2025	A+		8,620		9,176,852
IL Fin Auth - Noble Chtr Sch	5.00%	9/1/2025	BBB		1,500		1,631,310
IL Fin Auth - Univ Chicago	5.00%	10/1/2030	Aa2		8,000		9,206,640
MA DFA - Emerson Clg	5.00%	1/1/2026	BBB+		5,135		5,938,833
MA DFA - Emerson Clg	5.00%	1/1/2027	BBB+		2,700		3,109,914
MA DFA - Emerson Clg	5.00%	1/1/2028	BBB+		1,810		2,059,635
MA DFA - Emmanuel College	5.00%	10/1/2032	Baa2		5,000		5,835,050
Marietta Dev Auth - Life Univ†	5.00%	11/1/2037	Ba3		1,500		1,596,405
NC Cap Facs - High Point Univ	5.00%	5/1/2032	A-		2,500		2,528,300
Nova Southeastern Univ	5.00%	4/1/2037	A-		5,000		6,022,400
Nova Southeastern Univ	5.00%	4/1/2038	A-		2,500		3,004,425
NV Dept of Bus & Ind - Somerset Academy†	4.50%	12/15/2029	BB		640		681,978
NV Dept of Bus & Ind - Somerset Academy†	5.00%	12/15/2038	BB		1,000		1,060,080
NY Dorm - Montefiore	4.00%	9/1/2039	BBB		2,300		2,565,374
NY Dorm - Mt Sinai Sch Med	5.00%	7/1/2026	A-		5,000		5,920,800
NY Dorm - Mt Sinai Sch Med	5.00%	7/1/2027	A-		10,000		11,787,800
NY Dorm - Pace Univ	5.00%	5/1/2021	BBB-		1,845		1,866,660
NY Dorm - Pace Univ	5.00%	5/1/2023	BBB-		980		1,058,086
NY Dorm - Pace Univ	5.00%	5/1/2026	BBB-		980		1,054,117
NY Dorm - PIT	4.00%	2/15/2034	AA+		5,000		5,768,850
NY Dorm - SUNY	5.00%	7/1/2026	Aa3		2,000		2,371,240

See Notes to Schedule of Investments. 19

Schedule of Investments (unaudited)(continued)

INTERMEDIATE TAX FREE FUND December 31, 2020

Investments	Interest Rate		Maturity Date	Credit Rating: S&P or Moody’s	Principal Amount (000)		Fair Value
Education (continued)
NY Dorm - SUNY	5.00%		7/1/2027	Aa3	$	500	$	590,260
NY Dorm - SUNY	5.00%		7/1/2027	Aa3		4,880		5,766,598
NY Dorm - SUNY	5.00%		7/1/2028	Aa3		4,110		4,843,594
NY Dorm - SUNY	5.00%		7/1/2029	Aa3		2,750		3,221,268
Penn State Univ	5.00%		9/1/2037	Aa1		2,545		3,391,162
Pima IDA - American Leadership Acad†	4.75%		6/15/2037	NR		4,500		4,580,370
Private Clgs & Univs Auth - SCAD	5.00%		4/1/2029	A3		1,500		1,677,120
Private Clgs & Univs Auth - SCAD	5.00%		4/1/2031	A3		1,360		1,512,170
Troy Cap Res Corp - RPI	5.00%		8/1/2024	A3		1,000		1,135,640
Troy Cap Res Corp - RPI	5.00%		8/1/2025	A3		2,630		3,075,838
Troy Cap Res Corp - RPI	5.00%		8/1/2026	A3		1,000		1,180,880
Troy Cap Res Corp - RPI	5.00%		8/1/2027	A3		1,600		1,879,856
Univ of Connecticut	5.00%		11/1/2032	A+		3,740		4,801,262
Univ of CT	5.00%		4/15/2031	A+		8,605		10,964,405
Univ of CT	5.00%		4/15/2035	A+		5,350		6,724,897
Univ of Houston	5.00%		2/15/2029	AA		10,280		12,544,992
Univ of Illinois (AGM)	4.00%		4/1/2033	AA		4,905		5,729,580
Univ of Illinois (AGM)	4.00%		4/1/2034	AA		5,100		5,940,684
Univ of North Carolina - Wilmington	5.00%		6/1/2023	A1		2,435		2,661,820
Univ of North Carolina - Wilmington	5.00%		6/1/2024	A1		2,560		2,891,494
VA Clg Bldg Auth	4.00%		9/1/2035	AA+		8,795		10,593,929
Wayne State Univ	4.00%		11/15/2034	Aa3		3,900		4,371,900
Total								241,698,669
Energy 0.46%
PEFA Gas - Goldman Sachs	5.00%	#(a)	9/1/2049	A3		22,000		26,970,680
Financial Services 0.43%
Berks Co IDA - Tower Hlth	4.00%		11/1/2031	BB+		2,280		2,325,190
Berks Co IDA - Tower Hlth	5.00%		11/1/2030	BB+		1,315		1,467,172
MA Ed Fin Auth AMT	3.625%		7/1/2034	AA		12,235		12,958,700
NJ Higher Ed Assistance Auth AMT	3.75%		12/1/2030	Aaa		2,350		2,554,191
NJ Higher Ed Assistance Auth AMT	4.00%		12/1/2032	Aaa		2,690		2,956,041
NJ Higher Ed Assistance Auth AMT	4.00%		12/1/2034	Aaa		2,400		2,620,872
Total								24,882,166

20 See Notes to Schedule of Investments.

Schedule of Investments (unaudited)(continued)

INTERMEDIATE TAX FREE FUND December 31, 2020

Investments	Interest Rate		Maturity Date	Credit Rating: S&P or Moody’s	Principal Amount (000)		Fair Value
General Obligation 17.77%
Barrington SD	4.00%		12/1/2036	AAA	$	2,650	$	3,196,165
Barrington SD	4.00%		12/1/2038	AAA		6,315		7,578,063
Barrington SD	4.00%		12/1/2039	AAA		2,000		2,395,560
Bay Area Rapid Transit Dist	2.00%		8/1/2040	AAA		7,500		7,596,600
Bay Area Rapid Transit Dist	3.00%		8/1/2038	AAA		1,500		1,686,195
Bellwood GO	5.875%		12/1/2027	A		5,000		5,485,400
Bellwood GO	6.15%		12/1/2032	A		3,770		4,154,804
CA State GO	0.867% (1 Mo. LIBOR * .70 + .76%	)#	12/1/2031	Aa2		5,000		5,005,650
CA State GO	3.00%		10/1/2033	Aa2		14,150		16,202,740
CA State GO	3.00%		11/1/2035	Aa2		3,250		3,740,588
CA State GO	4.00%		3/1/2036	Aa2		21,330		26,475,436
CA State GO	4.00%		10/1/2036	Aa2		5,000		6,160,150
CA State GO	4.00%		3/1/2046	Aa2		3,500		4,217,045
CA State GO	5.00%		10/1/2027	Aa2		10,000		11,054,300
CA State GO	5.00%		9/1/2030	Aa2		10,000		12,062,100
CA State GO	5.00%		10/1/2030	Aa2		7,025		9,315,853
CA State GO	5.00%		4/1/2032	Aa2		13,850		19,851,343
CA State GO (AGM)	5.25%		8/1/2032	AA		10,000		14,427,000
Chabot/Las Positas CCD	5.00%		8/1/2023	AA		3,000		3,367,560
Chicago Brd Ed	5.00%		12/1/2029	BB-		3,000		3,502,170
Chicago Brd Ed	5.00%		12/1/2030	BB-		3,500		4,123,350
Chicago Brd Ed	5.00%		12/1/2030	BB-		5,100		5,944,509
Chicago Brd Ed	5.00%		12/1/2031	BB-		1,500		1,740,990
Chicago Brd Ed	5.00%		12/1/2031	BB-		3,100		3,104,650
Chicago Brd Ed	5.00%		12/1/2032	BB-		4,845		5,615,064
Chicago Brd Ed	5.00%		12/1/2033	BB-		900		1,039,338
Chicago Brd Ed	5.00%		12/1/2034	BB-		475		547,751
Chicago Brd Ed	5.00%		12/1/2035	BB-		450		517,473
Chicago Brd Ed	5.00%		12/1/2046	BB-		7,500		8,464,125
Chicago Brd Ed†	6.75%		12/1/2030	BB-		5,000		6,445,800
Chicago Brd Ed (AGM)	5.00%		12/1/2027	AA		2,100		2,600,430
Chicago Brd Ed (AGM)	5.00%		12/1/2027	AA		2,860		3,552,177
Chicago Brd Ed (AGM)	5.00%		12/1/2029	AA		4,120		5,133,808
Chicago Brd Ed (AGM)	5.00%		12/1/2030	AA		2,500		3,101,725
Chicago Brd Ed (AGM)	5.00%		12/1/2032	AA		1,250		1,535,550
Chicago Brd Ed (AGM)	5.00%		12/1/2035	AA		3,000		3,655,710

See Notes to Schedule of Investments. 21

Schedule of Investments (unaudited)(continued)

INTERMEDIATE TAX FREE FUND December 31, 2020

Investments	Interest Rate	Maturity Date	Credit Rating: S&P or Moody’s	Principal Amount (000)		Fair Value
General Obligation (continued)
Chicago GO	5.00%	1/1/2022	BBB+	$	7,770	$	8,010,248
Chicago GO	5.00%	1/1/2024	BBB+		15,000		16,306,500
Chicago GO	5.00%	1/1/2025	BBB+		7,000		7,740,040
Chicago GO	5.00%	1/1/2028	BBB+		6,900		7,879,938
Chicago GO	5.00%	1/1/2029	BBB+		7,750		8,930,015
Chicago GO	5.00%	1/1/2030	BBB+		2,000		2,311,900
Chicago GO	5.00%	1/1/2031	BBB+		2,210		2,419,707
Chicago GO	5.00%	1/1/2034	BBB+		7,625		8,097,598
Chicago GO	5.125%	1/1/2027	BBB+		3,100		3,425,469
Chicago GO	5.25%	1/1/2028	BBB+		3,845		4,256,530
Chicago GO	5.50%	1/1/2037	BBB+		1,250		1,373,338
Chicago GO	5.50%	1/1/2049	BBB+		3,750		4,411,575
Chicago GO	5.625%	1/1/2030	BBB+		1,835		2,149,647
Chicago GO	5.75%	1/1/2033	BBB+		7,000		8,159,620
Chicago GO	6.00%	1/1/2038	BBB+		15,890		18,618,313
Chicago GO (NPFGC)(FGIC)	Zero Coupon	1/1/2031	BBB+		2,260		1,679,496
Chicago Met Water Reclmtn Dist	5.00%	12/1/2027	AA		4,600		5,769,550
Chicago Met Water Reclmtn Dist	5.00%	12/1/2028	AA		6,715		8,395,697
Chicago Met Water Reclmtn Dist	5.25%	12/1/2034	AA		10,465		15,416,515
City of Schaumburg	3.00%	12/1/2031	AAA		1,300		1,396,551
City of Skokie	3.00%	12/1/2029	Aa2		1,080		1,226,632
Clackamas Co Sch Dist - North Clackamas	5.00%	6/15/2025	AA+		1,450		1,689,337
Clark Co GO	4.00%	6/1/2037	AA+		6,890		8,268,138
Clark Co GO	5.00%	11/1/2027	AA+		10,775		12,791,757
Clark Co Sch Dist (AGM)	3.00%	6/15/2037	AA		12,195		12,994,382
Clark Co SD (AGM)	4.00%	6/15/2036	AA		1,250		1,515,375
Clark Co SD (AGM)	5.00%	6/15/2028	AA		1,000		1,297,360
Clark Co SD (AGM)	5.00%	6/15/2029	AA		1,750		2,312,468
Clark Co SD (AGM)	5.00%	6/15/2031	AA		650		868,959
Clark Co SD (AGM)	5.00%	6/15/2033	AA		1,380		1,816,963
Cook Co GO	5.00%	11/15/2021	A+		5,000		5,176,700
Cook Co GO	5.00%	11/15/2025	A+		6,000		6,436,080
Cook Co GO	5.25%	11/15/2023	A+		10,510		10,908,854
CT State GO	4.00%	1/15/2034	A1		7,230		8,876,343
CT State GO	4.00%	1/15/2036	A1		20,000		24,428,000

22 See Notes to Schedule of Investments.

Schedule of Investments (unaudited)(continued)

INTERMEDIATE TAX FREE FUND December 31, 2020

Investments	Interest Rate	Maturity Date	Credit Rating: S&P or Moody’s	Principal Amount (000)		Fair Value
General Obligation (continued)
CT State GO	4.00%	4/15/2037	A1	$	1,825	$	2,180,802
CT State GO	4.00%	6/15/2037	A1		775		911,950
CT State GO	5.00%	10/15/2028	A1		12,500		15,458,250
CT State GO	5.00%	1/15/2030	A1		12,500		16,785,625
CT State GO	5.00%	6/15/2032	A1		2,000		2,549,800
CT State GO	5.00%	11/15/2033	A1		3,000		3,553,950
CT State GO	5.00%	6/15/2034	A1		1,100		1,391,016
CT State GO	5.00%	6/15/2035	A1		1,125		1,419,750
CT State GO	5.00%	4/15/2036	A1		1,150		1,478,256
Eaton Area Pk & Rec Dist	5.50%	12/1/2030	NR		240		263,695
Fresno USD (NPFGC)(FGIC)	5.25%	2/1/2024	A+		3,285		3,747,002
Geneva USD	5.00%	1/1/2028	AA+		1,125		1,422,540
Geneva USD	5.00%	1/1/2029	AA+		2,200		2,769,888
Geneva USD	5.00%	1/1/2030	AA+		1,400		1,752,156
HI Harbor System AMT	4.00%	7/1/2035	Aa3		1,325		1,580,977
HI State GO	5.00%	8/1/2026	AA+		7,590		8,848,877
Hinsdale GO	4.00%	1/15/2037	AAA		6,065		7,144,145
Houston GO	5.00%	3/1/2024	AA		2,000		2,301,020
Howard Co GO	3.00%	8/15/2036	AAA		1,910		2,144,586
Howard Co GO	3.00%	8/15/2037	AAA		2,255		2,519,805
Howard Co GO	3.00%	8/15/2038	AAA		1,500		1,672,005
IL State GO	4.00%	10/1/2034	BBB-		5,000		5,497,750
IL State GO	4.00%	10/1/2035	BBB-		5,000		5,480,350
IL State GO	5.00%	7/1/2022	BBB-		6,500		6,862,245
IL State GO	5.00%	8/1/2023	BBB-		5,350		5,809,619
IL State GO	5.00%	8/1/2024	BBB-		14,565		15,293,250
IL State GO	5.00%	11/1/2027	BBB-		5,000		5,744,250
IL State GO	5.00%	2/1/2028	BBB-		13,620		15,700,319
IL State GO	5.00%	11/1/2029	BBB-		2,800		3,181,612
IL State GO	5.00%	10/1/2032	BBB-		6,300		7,310,331
IL State GO	5.00%	10/1/2033	BBB-		5,000		5,779,550
IL State GO	5.25%	5/1/2023	BBB-		5,000		5,422,400
IL State GO	5.25%	7/1/2030	BBB-		5,430		5,792,127
IL State GO	5.25%	2/1/2034	BBB-		3,295		3,537,611
IL State GO	5.50%	5/1/2030	BBB-		6,395		7,982,495
IL State GO	5.50%	7/1/2038	BBB-		5,000		5,320,550
IL State GO	5.50%	5/1/2039	BBB-		11,000		13,320,450

See Notes to Schedule of Investments. 23

Schedule of Investments (unaudited)(continued)

INTERMEDIATE TAX FREE FUND December 31, 2020

Investments	Interest Rate	Maturity Date	Credit Rating: S&P or Moody’s	Principal Amount (000)		Fair Value
General Obligation (continued)
LA State GO	5.00%	5/1/2028	AA-	$	11,180	$	13,273,567
LA State GO	5.00%	3/1/2031	AA-		5,000		6,583,150
Lake Cnty IL Sch Dist #113	4.00%	1/1/2032	Aaa		4,130		4,987,760
Lake Co GO	3.50%	11/30/2031	AAA		1,825		1,970,507
Lane Co Sch Dist #4J	4.00%	6/15/2034	Aa1		9,000		10,176,660
Lubbock GO	5.00%	2/15/2026	AA+		11,810		13,995,086
Luzerne Co GO (AGM)	5.00%	11/15/2022	AA		2,250		2,436,008
Luzerne Co GO (AGM)	5.00%	11/15/2023	AA		2,500		2,804,150
Luzerne Co GO (AGM)	5.00%	11/15/2024	AA		4,000		4,649,280
Memphis TN GO	4.00%	5/1/2038	AA		6,395		7,594,446
MI Strategic Fund - I-75 AMT (AGM)	4.25%	12/31/2038	AA		2,500		2,980,625
Miami-Dade Co GO	5.00%	7/1/2038	AA		4,830		6,297,354
Nassau Co GO (AGM)	5.00%	1/1/2026	AA		10,000		12,160,400
NJ State GO	4.00%	6/1/2031	A3		13,255		16,405,713
NJ State GO	4.00%	6/1/2032	A3		14,680		18,314,328
NJ State GO	5.00%	6/1/2026	A3		10,000		12,238,600
NJ State GO	5.00%	6/1/2027	A3		3,650		4,567,647
NJ State GO	5.00%	6/1/2029	A3		5,000		6,156,300
NV State GO	5.00%	11/1/2026	AA+		7,500		8,967,600
NY Dorm - Sch Dist (AGM)	5.00%	10/1/2023	AA		2,500		2,800,200
NY Dorm - Sch Dist (AGM)	5.00%	10/1/2031	AA		5,370		6,973,643
NYC GO	5.00%	10/1/2021	AA		6,000		6,213,420
NYC GO	4.00%	8/1/2036	AA		6,000		7,292,280
NYC GO	4.00%	8/1/2037	AA		2,500		3,023,525
NYC GO	5.00%	8/1/2022	AA		220		225,920
NYC GO	5.00%	8/1/2022	NR		9,790		10,062,064
NYC GO	5.00%	8/1/2025	AA		12,000		13,457,040
NYC GO	5.00%	8/1/2026	AA		5,235		5,499,786
NYC GO	5.00%	8/1/2032	AA		1,750		2,274,423
NYC GO	5.00%	10/1/2032	AA		3,500		4,626,475
NYC GO	5.00%	10/1/2033	AA		4,500		5,922,045
NYC IDA - Yankee Stadium (AGM)	3.00%	3/1/2040	AA		5,000		5,422,450
PA State GO	4.00%	3/1/2035	Aa3		12,500		14,880,250
PA State GO	4.00%	3/1/2038	Aa3		8,020		9,417,325
PA State GO	5.00%	1/15/2028	Aa3		10,000		12,564,300
Peralta CCD	5.00%	8/1/2021	AA-		3,000		3,083,010
Perris UHSD (AGM)	4.00%	9/1/2037	AA		2,000		2,411,360

24 See Notes to Schedule of Investments.

Schedule of Investments (unaudited)(continued)

INTERMEDIATE TAX FREE FUND December 31, 2020

Investments	Interest Rate		Maturity Date	Credit Rating: S&P or Moody’s		Principal Amount (000)		Fair Value
General Obligation (continued)
Perris UHSD (AGM)	4.00%		9/1/2039	AA		$	5,050	$	6,049,900
Perris UHSD (AGM)	4.00%		9/1/2040	AA			1,935		2,308,958
Philadelphia GO	5.00%		2/1/2030	A			2,750		3,596,615
Philadelphia GO	5.00%		2/1/2031	A			2,500		3,248,100
Philadelphia GO	5.00%		2/1/2032	A			1,750		2,262,733
Philadelphia GO	5.00%		2/1/2033	A			2,500		3,213,350
Philadelphia Sch Dist	5.00%		9/1/2026	A2			500		613,025
Philadelphia Sch Dist	5.00%		9/1/2027	A2			600		752,688
Philadelphia Sch Dist	5.00%		9/1/2028	A2			500		641,195
Philadelphia Sch Dist	5.00%		9/1/2030	A2			2,500		3,251,550
Philadelphia Sch Dist	5.00%		9/1/2031	A2			2,500		3,224,725
Philadelphia Sch Dist	5.00%		9/1/2032	A2			3,200		4,095,200
Philadelphia Sch Dist (AGM)	5.00%		6/1/2030	AA			5,000		6,127,950
Philadelphia Sch Dist (AGM)	5.00%		6/1/2031	AA			5,000		6,105,550
PR Comwlth GO(b)	8.00%		7/1/2035	Ca			3,250		2,234,375
PR Comwlth GO (AGM)	5.00%		7/1/2035	AA			2,115		2,214,807
PR Comwlth GO (AGM)	5.25%		7/1/2024	AA			855		871,664
PR Comwlth GO TCRS (AMBAC)	4.50%		7/1/2023	Ca			935		936,281
PR Pub Bldg Auth GTD (AMBAC)	10.00%	#(a)	7/1/2035	Ca			4,245		4,476,310
Reedy Creek Impt Dist GO	4.00%		6/1/2031	AA-			2,240		2,635,965
RI State GO	5.00%		8/1/2029	AA			7,500		9,567,450
Romeoville GO	4.00%		12/30/2036	Aa2			4,725		5,592,557
Romeoville GO	4.00%		12/30/2037	Aa2			3,800		4,486,356
VT EDA - Casella Waste AMT†	4.625%	#(a)	4/1/2036	B			750		859,800
WA State GO	5.00%		8/1/2022	Aaa			14,245		14,641,723
Wake Co Ltd Ob	4.00%		12/1/2031	AA+			5,000		5,907,250
Total									1,034,508,545
Health Care 13.29%
Allegheny Co Hosp Auth - UPMC	4.00%		7/15/2038	A			4,950		5,780,511
Allegheny County Health Network	5.00%		4/1/2030	A			4,750		5,946,002
Allegheny County Health Network	5.00%		4/1/2031	A			6,000		7,472,340
Antelope Valley Hlth	5.00%		3/1/2031	Ba3			7,000		7,465,500
AR DFA - Baptist Mem Hlth	1.64% (MUNIPSA * 1 + 1.55%	)#	9/1/2044	BBB+			12,000		11,922,240
Atlantic Beach Hlth Facs - Fleet Landing	5.00%		11/15/2028	BBB	(d)		2,020		2,175,378
AZ Hlth Facs - Phoenix Childrens Hsp	5.00%		2/1/2030	A1			6,000		6,273,840

See Notes to Schedule of Investments. 25

Schedule of Investments (unaudited)(continued)

INTERMEDIATE TAX FREE FUND December 31, 2020

Investments	Interest Rate		Maturity Date	Credit Rating: S&P or Moody’s	Principal Amount (000)		Fair Value
Health Care (continued)
Berks Co IDA - Tower Hlth	5.00%		11/1/2036	BB+	$	1,835	$	2,010,059
Berks Co IDA - Tower Hlth	5.00%		11/1/2037	BB+		5,075		5,546,924
Blaine Sr Hsg & Hlthcare - Crest View	5.125%		7/1/2025	NR		3,075		3,027,276
CA Hlth - Childrens Hsp Los Angeles	5.00%		11/15/2022	BBB+		1,540		1,660,012
CA Hlth - Childrens Hsp Los Angeles	5.00%		11/15/2023	BBB+		1,000		1,077,480
CA Hlth - Childrens Hsp Los Angeles	5.00%		11/15/2024	BBB+		2,000		2,154,500
CA Hlth - Childrens Hsp Los Angeles	5.00%		11/15/2025	BBB+		4,880		5,255,418
CA Hlth - Childrens Hsp Los Angeles	5.00%		11/15/2026	BBB+		3,705		3,982,875
CA Hlth - Childrens Hsp Los Angeles	5.00%		11/15/2029	BBB+		1,300		1,389,622
CA Hlth - CommonSpirit	4.00%		4/1/2035	BBB+		3,065		3,692,283
CA Hlth - CommonSpirit	4.00%		4/1/2036	BBB+		5,000		5,992,300
CA Hlth - Lucile Packard Childrens Hsp	5.00%		8/15/2032	A+		1,250		1,519,713
CA Hlth - Sutter Hlth	5.00%		11/15/2032	A+		2,000		2,562,240
CA Hlth - Sutter Hlth	5.00%		11/15/2033	A+		2,450		3,131,982
CA Hlth - Sutter Hlth	5.00%		11/15/2034	A+		3,350		4,276,342
CA Hlth Facs - Cedars-Sinai Med Ctr	5.00%		11/15/2026	Aa3		5,000		6,145,300
CA Muni Fin - Cmnty Med Ctrs	5.00%		2/1/2030	A-		3,305		3,775,962
CA Stwde - Loma Linda Univ Med Ctr†	5.00%		12/1/2033	BB-		1,000		1,173,090
CA Stwde - Loma Linda Univ Med Ctr†	5.25%		12/1/2038	BB-		1,500		1,769,865
Camden Co Impt Auth - Cooper Hlth	5.00%		2/15/2023	BBB+		3,000		3,251,340
Camden Co Impt Auth - Cooper Hlth	5.00%		2/15/2024	BBB+		3,730		4,185,694
Camden Co Impt Auth - Cooper Hlth	5.00%		2/15/2025	BBB+		1,250		1,402,275
Camden Co Impt Auth - Cooper Hlth	5.00%		2/15/2027	BBB+		1,000		1,117,200
City of Oroville - Oroville Hsp	5.25%		4/1/2034	BB		2,300		2,626,324
Clarke Co Hsp - Piedmont Hlth	5.00%		7/1/2029	AA-		7,090		8,684,966
Clarke Co Hsp - Piedmont Hlth	5.00%		7/1/2030	AA-		4,500		5,490,270
CO Hlth Fac Auth - CommonSpirit	4.00%		8/1/2039	BBB+		2,500		2,897,450
CO Hlth Facs - Valley View Hosp	2.80%	#(a)	5/15/2042	A-		2,380		2,482,459
CO Hlth Facs Auth - Commonspirit	5.00%		8/1/2031	BBB+		3,000		3,868,920
CO Hlth Facs - Adventhealth Obligated	4.00%		11/15/2043	AA		6,715		7,875,352
CT Hlth & Ed - Griffin Hosp†	5.00%		7/1/2032	BB+		370		431,376
CT Hlth & Ed - Griffin Hosp†	5.00%		7/1/2034	BB+		225		258,579
CT Hlth & Ed - Griffin Hosp†	5.00%		7/1/2039	BB+		1,000		1,116,920
CT Hlth & Ed - Trinity Hlth Corp	5.00%		12/1/2041	AA-		5,150		6,139,881
CT Hlth & Ed Fac Auth - Nuvance Hlt	4.00%		7/1/2034	A-		1,750		2,003,523
CT Hlth & Ed Fac Auth - Nuvance Hlt	4.00%		7/1/2035	A-		2,500		2,855,350
CT Hlth & Ed Fac Auth - Nuvance Hlt	5.00%		7/1/2028	A-		5,000		6,214,900

26 See Notes to Schedule of Investments.

Schedule of Investments (unaudited)(continued)

INTERMEDIATE TAX FREE FUND December 31, 2020

Investments	Interest Rate		Maturity Date	Credit Rating: S&P or Moody’s		Principal Amount (000)		Fair Value
Health Care (continued)
CT Hlth & Ed Fac Auth - Nuvance Hlt	5.00%		7/1/2029	A-		$	5,250	$	6,636,682
Cuyahoga Co Hsp - Metrohealth	5.00%		2/15/2037	BBB-			5,000		5,833,100
DC Hsp - Childrens Ntl Hsp	5.00%		7/15/2026	A1			1,700		2,080,477
Decatur Hsp - Wise Hlth	5.00%		9/1/2034	BBB-			4,825		5,279,274
Decatur Hsp - Wise Hlth	5.25%		9/1/2029	BBB-			800		893,912
Duluth EDA - St Lukes Hsp	5.75%		6/15/2032	NR			4,250		4,471,510
Eisenhower Med Ctr	5.00%		7/1/2029	Baa2			900		1,088,361
Eisenhower Med Ctr	5.00%		7/1/2031	Baa2			1,500		1,801,200
Eisenhower Med Ctr	5.00%		7/1/2033	Baa2			1,000		1,185,060
Fairfax Co EDA - Vinson Hall	4.50%		12/1/2032	BBB+	(d)		2,500		2,629,175
Franklin Co IDA - Menno-Haven	5.00%		12/1/2031	NR			1,000		1,109,670
Franklin Co IDA - Menno-Haven	5.00%		12/1/2033	NR			1,000		1,096,650
Franklin Co IDA - Menno-Haven	5.00%		12/1/2038	NR			1,000		1,084,750
Gainesville & Hall Co Hsp - NE GA Hlth	5.00%		2/15/2033	A			9,465		12,294,278
Geisinger Health	4.00%		4/1/2039	AA-			8,000		9,615,280
Geisinger Health	5.00%	#(a)	4/1/2043	AA-			10,000		13,194,100
Glendale IDA - Beatitudes	5.00%		11/15/2036	NR			1,500		1,625,610
Greeneville Hlth - Ballad Hlth	5.00%		7/1/2035	A-			3,300		4,047,516
Greeneville Hlth - Ballad Hlth	5.00%		7/1/2036	A-			3,000		3,668,790
Greeneville Hlth - Ballad Hlth	5.00%		7/1/2037	A-			10,000		12,197,000
Guadalupe Co - Seguin City Hospital	5.25%		12/1/2035	BB			3,000		3,335,040
Harris Co Cultural Ed - Brazos	4.00%		1/1/2023	BBB-	(d)		500		509,150
Harris Co Cultural Ed - Brazos	6.375%		1/1/2033	BBB-	(d)		1,385		1,474,042
HI Dept Budget - Kahala Nui	5.00%		11/15/2027	A	(d)		1,500		1,616,820
IA Fin Auth - Iowa Fertilizer Co	5.25%	#(a)	12/1/2050	BB-			8,095		8,824,926
IL Fin Auth - Ascension Health	4.00%		2/15/2033	AA+			5,000		5,809,500
IL Fin Auth - Centegra Hlth	5.00%		9/1/2034	AA+			1,015		1,152,167
IL Fin Auth - Northshore Univ Hlth	5.00%		8/15/2031	AA-			2,000		2,706,340
IL Fin Auth - Northshore Univ Hlth	5.00%		8/15/2033	AA-			1,250		1,669,738
IL Fin Auth - Northwestern Mem Hlth	5.00%		7/15/2029	AA+			1,000		1,279,660
IL Fin Auth - Plymouth Place	5.00%		5/15/2030	BB+	(d)		1,690		1,798,667
IL Fin Auth - Silver Cross Hsp	5.00%		8/15/2035	A3			4,500		5,139,945
Jefferson Co Hlth - Norton Healthcare	4.00%		10/1/2039	A			1,185		1,389,780
Karnes Co Hsp Dist	5.00%		2/1/2024	A	(d)		1,400		1,491,168
Karnes Co Hsp Dist	5.00%		2/1/2034	A	(d)		1,000		1,089,650
Kirkwood IDA - Aberdeen Heights	5.25%		5/15/2037	BB	(d)		2,000		2,197,960
KY EDFA - Masonic Homes	5.375%		11/15/2032	NR			2,385		2,418,748
KY EDFA - Owensboro Hlth	5.00%		6/1/2029	Baa3			4,235		4,873,172

See Notes to Schedule of Investments. 27

Schedule of Investments (unaudited)(continued)

INTERMEDIATE TAX FREE FUND December 31, 2020

Investments	Interest Rate		Maturity Date	Credit Rating: S&P or Moody’s	Principal Amount (000)		Fair Value
Health Care (continued)
KY EDFA - Owensboro Hlth	5.00%		6/1/2032	Baa3	$	6,000	$	6,820,020
Lee Memorial Hlth System	5.00%		4/1/2036	A+		4,535		5,792,011
Lehigh Co - Lehigh Valley Health Network	5.00%		7/1/2029	A+		4,300		5,654,629
MA DFA - Beth Israel Lahey Hlth	5.00%		7/1/2034	A		1,000		1,284,810
MA DFA - Beth Israel Lahey Hlth	5.00%		7/1/2036	A		2,000		2,555,240
MA DFA - Atrius Hlth	5.00%		6/1/2039	BBB		1,250		1,509,738
MA DFA - Partners Hlthcare Sys	5.00%		7/1/2030	AA-		9,660		12,341,616
MA DFA - Wellforce Hlth	4.00%		7/1/2035	BBB+		2,000		2,245,520
MA DFA - Wellforce Hlth	4.00%		7/1/2037	BBB+		3,930		4,386,037
MA DFA - Wellforce Hlth	5.00%		7/1/2038	BBB+		1,000		1,203,170
MA DFA - Wellforce Hlth	5.00%		7/1/2039	BBB+		2,250		2,697,840
Maricopa Cnty AZ IDA - Banner Health	5.00%		1/1/2028	AA-		5,000		6,523,300
Maricopa Co IDA - Honor Health	5.00%		9/1/2033	A2		500		624,120
Maricopa Co IDA - Honor Health	5.00%		9/1/2034	A2		1,000		1,245,740
Maricopa Co IDA - Honor Health	5.00%		9/1/2035	A2		1,000		1,242,750
Maricopa Co IDA - Honor Health	5.00%		9/1/2036	A2		1,800		2,230,236
MD Hlth & Hi Ed - Mercy Med Ctr	5.00%		7/1/2031	BBB+		1,100		1,167,452
MD Hlth & HI ED - Univ of MD Med	5.00%	#(a)	7/1/2045	A		6,500		8,089,250
ME Hlth & HI Ed - Mainegeneral Hlth	6.00%		7/1/2026	Ba3		7,755		7,894,280
Meadville Med Center	6.00%		6/1/2036	NR		3,830		4,303,694
Met Nash/Davidson Hlth - Vanderbilt Med	5.00%		7/1/2031	A3		1,300		1,563,445
MI Fin Auth - Crittenton Hospital	5.00%		6/1/2022	NR		2,960		3,157,580
MI Fin Auth - Crittenton Hospital	5.00%		6/1/2027	NR		7,250		7,739,230
MI Fin Auth - Trinity Health	4.00%		12/1/2039	AA-		7,065		8,374,710
MI Fin Auth - Trinity Health	5.00%		12/1/2035	AA-		5,000		6,282,950
Miami Beach Hlth - Mt Sinai Med Ctr	5.00%		11/15/2030	Baa1		1,500		1,695,810
Miami Dade Co Hlth - Miami Childrens Hsp	5.125%		8/1/2037	A		12,150		13,222,237
Miami Dade Co Hlth - Miami Childrens Hsp	5.25%		8/1/2042	A		8,855		9,661,071
Montgomery Co IDA - Einstein Hlthcare	5.00%		1/15/2024	Ba1		4,000		4,416,560
Montgomery Co IDA - Einstein Hlthcare	5.25%		1/15/2026	Ba1		2,000		2,287,640
Montgomery Co IDA - Einstein Hlthcare	5.25%		1/15/2028	Ba1		3,000		3,403,560
Montgomery Co IDA - Jefferson Hlth	4.00%		9/1/2036	A		1,350		1,566,864
Montgomery Co IDA - Jefferson Hlth	4.00%		9/1/2038	A		2,250		2,596,793
Montgomery Co IDA - Jefferson Hlth	4.00%		9/1/2039	A		4,140		4,767,665
Montgomery Co IDA - Whitemarsh	4.00%		1/1/2023	NR		610		623,243
Montgomery Co IDA - Whitemarsh	5.00%		1/1/2030	NR		2,000		2,121,480
Moon IDC - Baptist Homes Soc	5.125%		7/1/2025	NR		4,600		4,915,882

28 See Notes to Schedule of Investments.

Schedule of Investments (unaudited)(continued)

INTERMEDIATE TAX FREE FUND December 31, 2020

Investments	Interest Rate		Maturity Date	Credit Rating: S&P or Moody’s		Principal Amount (000)		Fair Value
Health Care (continued)
Muskingum Co Hsp - Genesis Hlthcare	5.00%		2/15/2033	BB+		$	10,500	$	11,047,260
Nassau Co LEAC - Winthrop Univ Hsp	5.00%		7/1/2027	A3			3,000		3,217,710
NC Med - Lutheran Svcs	4.75%		3/1/2032	NR			2,550		2,586,261
NC Med - Southminster	5.00%		10/1/2031	NR			1,750		1,884,715
New Hope Cult Ed Facs - Crestview	5.00%		11/15/2031	BB+	(d)		850		911,149
New Hope Ed Facs - Childrens Hlth	5.00%		8/15/2026	Aa3			2,000		2,485,140
New Hope Ed Facs - Childrens Hlth	5.00%		8/15/2028	Aa3			3,170		4,034,237
NJ Hlth - Hackensack Meridian Hlth	5.00%		7/1/2028	AA-			5,500		6,977,410
NJ Hlth - St Josephs Hlth	5.00%		7/1/2028	BBB-			1,300		1,531,309
NJ Hlth - St Josephs Hlth	5.00%		7/1/2029	BBB-			1,605		1,881,221
NJ Hlth - St Josephs Hlth	5.00%		7/1/2030	BBB-			1,100		1,284,195
NJ Hlth - St Josephs Hlth	5.00%		7/1/2031	BBB-			1,110		1,291,907
NJ Hlth - St Peters Univ Hsp	5.25%		7/1/2021	BB+			545		546,303
NJ Hlth - St Peters Univ Hsp	5.75%		7/1/2037	BB+			6,500		6,519,955
NJ Hlth - St Peters Univ Hsp	6.00%		7/1/2026	BB+			5,500		5,612,365
NJ Hlth - St Peters Univ Hsp	6.25%		7/1/2035	BB+			2,050		2,092,702
NJ Hlth - Univ Hosp (AGM)	5.00%		7/1/2028	AA			2,000		2,331,900
NJ Hlth Fin Auth - Valley Health	4.00%		7/1/2036	A			1,000		1,179,010
NJ Hlth Fin Auth - Valley Health	4.00%		7/1/2037	A			1,000		1,175,450
NJ Hlth Fin Auth - Valley Health	5.00%		7/1/2029	A			1,000		1,310,300
NM Hsp - Haverland	5.00%		7/1/2032	BBB-	(d)		1,000		1,033,870
Norfolk EDA - Sentara Hlth	5.00%	#(a)	11/1/2048	AA			5,500		7,158,745
NY Dorm - Catholic Hlth	4.00%		7/1/2037	BBB			1,100		1,252,977
NY Dorm - Catholic Hlth	4.00%		7/1/2039	BBB			1,000		1,131,850
NY Dorm - Catholic Hlth	4.00%		7/1/2040	BBB			850		959,888
NY Dorm - Catholic Hlth	5.00%		7/1/2036	BBB			1,945		2,389,257
NY Dorm - Montefiore	4.00%		8/1/2036	BBB			1,780		1,980,286
NY Dorm - Montefiore	4.00%		9/1/2036	BBB			1,005		1,130,123
NY Dorm - Montefiore	4.00%		8/1/2037	BBB			650		721,214
NY Dorm - Montefiore	4.00%		8/1/2038	BBB			900		996,228
NY Dorm - Montefiore	4.00%		9/1/2038	BBB			2,290		2,560,037
NY Dorm - Montefiore	4.00%		9/1/2040	BBB			2,300		2,558,819
NY Dorm - Montefiore	5.00%		9/1/2031	BBB			800		1,003,088
NY Dorm - Montefiore	5.00%		9/1/2032	BBB			1,300		1,620,372
NY Dorm - Montefiore	5.00%		8/1/2033	BBB			900		1,085,733
NY Dorm - Montefiore	5.00%		9/1/2033	BBB			1,000		1,237,700
NY Dorm - Montefiore	5.00%		8/1/2034	BBB			500		601,890
NY Dorm - Montefiore	5.00%		9/1/2034	BBB			2,380		2,938,895

See Notes to Schedule of Investments. 29

Schedule of Investments (unaudited)(continued)

INTERMEDIATE TAX FREE FUND December 31, 2020

Investments	Interest Rate		Maturity Date	Credit Rating: S&P or Moody’s		Principal Amount (000)		Fair Value
Health Care (continued)
NY Dorm - Montefiore		5.00%	8/1/2035	BBB		$	900	$	1,080,981
NY Dorm - Montefiore		5.00%	9/1/2035	BBB			2,620		3,226,242
NY Dorm - Orange Reg Med Ctr†		5.00%	12/1/2030	BBB-			1,100		1,323,168
NY Dorm - Orange Reg Med Ctr†		5.00%	12/1/2031	BBB-			1,600		1,914,448
NY Dorm - Orange Regl Med Ctr†		5.00%	12/1/2026	BBB-			1,500		1,829,745
NY Dorm - Orange Regl Med Ctr†		5.00%	12/1/2027	BBB-			1,300		1,595,490
NY Dorm - Orange Regl Med Ctr†		5.00%	12/1/2028	BBB-			2,000		2,436,500
NY Dorm - Orange Regl Med Ctr†		5.00%	12/1/2029	BBB-			2,700		3,264,975
NYC Hlth & Hsp Corp		5.00%	2/15/2023	Aa3			4,000		4,383,720
OH Hosp Fac - Premier Hlt		4.00%	11/15/2039	Baa1			6,000		6,654,660
OK DFA - OU Med		5.00%	8/15/2033	Baa3			5,045		6,082,302
OK DFA - OU Med		5.00%	8/15/2038	Baa3			2,645		3,149,904
OK DFA - OU Med		5.25%	8/15/2043	Baa3			5,105		6,116,709
Oneida Co - Mohawk Valley Hlth (AGM)		4.00%	12/1/2035	AA			1,000		1,180,520
Oneida Co - Mohawk Valley Hlth (AGM)		4.00%	12/1/2036	AA			1,250		1,470,450
Oneida Co - Mohawk Valley Hlth (AGM)		4.00%	12/1/2037	AA			2,210		2,592,418
OR Hosp Fac - Salem Health		5.00%	5/15/2029	A+			3,275		4,329,550
OR Hosp Fac - Salem Health		5.00%	5/15/2030	A+			4,660		6,113,920
Oroville - Oroville Hsp		5.25%	4/1/2039	BB			440		493,469
Palomar Hlth		5.00%	11/1/2036	BBB			2,980		3,460,138
Philadelphia Hsps - Temple Univ Hlth		5.00%	7/1/2029	BBB-			3,985		4,666,156
Philadelphia Hsps - Temple Univ Hlth		5.00%	7/1/2030	BBB-			4,775		5,568,748
Philadelphia Hsps - Temple Univ Hlth		5.00%	7/1/2032	BBB-			4,055		4,703,070
Philadelphia Hsps - Temple Univ Hlth		5.00%	7/1/2033	BBB-			4,870		5,636,197
Philadelphia IDA - Wesley		5.00%	7/1/2037	BB	(d)		1,890		1,992,646
Philadelphia IDA - Wesley		5.00%	7/1/2042	BB	(d)		1,000		1,045,020
San Buenaventura - Cmnty Mem Hlth		8.00%	12/1/2026	BB			10,050		10,673,904
SE Port Auth - Memorial Hlth		5.00%	12/1/2035	BB-	(d)		3,850		3,998,071
SE Port Auth - Memorial Hlth		5.50%	12/1/2029	BB-	(d)		750		811,260
South Miami Hlth Fac - Baptist Hlth		5.00%	8/15/2026	AA-			3,000		3,718,350
South Miami Hlth Fac - Baptist Hlth		5.00%	8/15/2027	AA-			3,620		4,602,830
South Miami Hlth Fac - Baptist Hlth		5.00%	8/15/2028	AA-			2,625		3,329,025
St Paul Hsg - HlthEast Care Sys		5.00%	11/15/2023	NR			3,735		4,238,179
St Paul Hsg - HlthEast Care Sys		5.00%	11/15/2024	NR			4,500		5,309,370
Tampa Hlth & Ed - Lee Moffit Cancer Center		4.00%	7/1/2039	A2			2,650		3,115,367
Tampa Hlth & Ed - Moffit Cancer		4.00%	7/1/2038	A2			4,755		5,604,005
Tulsa Co Industrial Auth - Montereau		5.25%	11/15/2037	BBB-	(d)		1,250		1,358,675

30 See Notes to Schedule of Investments.

Schedule of Investments (unaudited)(continued)

INTERMEDIATE TAX FREE FUND December 31, 2020

Investments	Interest Rate			Maturity Date	Credit Rating: S&P or Moody’s		Principal Amount (000)		Fair Value
Health Care (continued)
Tyler Hlth - Mother Frances Hsp		5.50%		7/1/2027	NR		$	3,975	$	4,076,680
Univ of CA		5.00%		5/15/2034	AA-			12,250		15,354,027
VA Clg Bldg Auth		4.00%		2/1/2034	AA+			19,965		24,378,064
WA HFC - Rockwood†		6.00%		1/1/2024	NR			685		715,188
WA Hlth - Fred Hutchinson Cancer Ctr		1.198% (1 Mo. LIBOR * ..67 + 1.10%	)#	1/1/2042	A+			4,000		4,014,760
WA Hsg - Transforming Age†		2.375%		1/1/2026	BB	(d)		1,800		1,775,340
WI Hlth & Ed - American Baptist		5.00%		8/1/2032	NR			1,375		1,470,453
WI Hlth & Ed - American Baptist		5.00%		8/1/2037	NR			1,500		1,590,345
WI Hlth & Ed - Aurora Hlth		5.00%		7/15/2026	Aa3			5,575		5,718,779
WI Hlth & Ed - Marshfield Hlth		5.00%	#(a)	2/15/2051	A-			5,000		6,068,100
WI PFA - Alabama Proton†		6.85%		10/1/2047	NR			2,160		2,491,430
Wood Co Hsp Facs - Wood Co Hsp		5.00%		12/1/2027	Ba3			3,450		3,587,759
Wood Co Hsp Facs - Wood Co Hsp		5.00%		12/1/2032	Ba3			2,275		2,340,406
WV Hsp - WV United Health Sys		4.00%		6/1/2030	A			5,500		6,276,160
Total										774,088,018
Housing 0.93%
Alachua Co Hlth - Oak Hammock		8.00%		10/1/2032	NR			500		552,325
CA Cmty Hsg - Verdant†		5.00%		8/1/2049	NR			400		455,528
CA HFA - MFH		4.00%		3/20/2033	BBB+			6,943		7,831,116
CA HFA - MFH		4.25%		1/15/2035	BBB+			4,415		5,108,526
CA Muni Fin - Park Wstrn Apts (FNMA)		2.65%		8/1/2036	Aaa			4,435		4,827,179
CA State GO		5.00%		11/1/2031	Aa2			10,000		12,868,600
CA Stwde - CHF-Irvine LLC		5.00%		5/15/2026	Baa1			1,000		1,161,710
CA Stwde - CHF-Irvine LLC		5.00%		5/15/2027	Baa1			750		867,128
CA Stwde - Lancer Student Hsg†		5.00%		6/1/2034	NR			380		436,084
CA Stwde - Lancer Student Hsg†		5.00%		6/1/2039	NR			650		735,612
MD State Hsg CDA		3.00%		9/1/2039	Aa1			10,000		10,743,500
MO State Hsg Dev Cmmn (GNMA)		4.25%		5/1/2047	AA+			2,190		2,458,100
NYC IDA - Yankee Stadium (FGIC)		2.012% (CPI Based	)#	3/1/2021	Baa1			3,850		3,856,237
Phoenix IDA - ASU Std Hsg		5.00%		7/1/2032	Baa3			1,080		1,213,898
WA Hsg - Emerald Heights		5.00%		7/1/2022	A-	(d)		1,000		1,043,880
Total										54,159,423
Lease Obligations 5.90%
Alachua Cnty School Brd COP (AGM)		5.00%		7/1/2029	AA			7,530		9,817,012
Broward Co Sch Brd COP		5.00%		7/1/2021	Aa3			5,000		5,117,200

See Notes to Schedule of Investments. 31

Schedule of Investments (unaudited)(continued)

INTERMEDIATE TAX FREE FUND December 31, 2020

Investments	Interest Rate			Maturity Date	Credit Rating: S&P or Moody’s	Principal Amount (000)		Fair Value
Lease Obligations (continued)
CA Pub Wks - Dept Hsps		5.00%		6/1/2023	Aa3	$	3,000	$	3,344,850
CA Pub Wks - Various Cap Proj		5.00%		4/1/2021	Aa3		3,250		3,288,025
CA Pub Wks - Various Cap Proj		5.00%		11/1/2021	Aa3		1,000		1,039,840
CA Pub Wks - Various Cap Proj		5.00%		4/1/2022	Aa3		4,200		4,451,496
Cuyahoga Co COP - Conv Hotel Proj		5.00%		12/1/2023	AA-		5,640		6,246,977
Dallas Civic Ctr (AGC)		5.00%		8/15/2021	AA		3,800		3,812,958
Dallas Conv Ctr Hotel Dev Corp		5.25%		1/1/2022	A		6,405		6,426,777
Erie Co IDA - Buffalo Sch Dist		5.00%		5/1/2024	AA		5,930		6,020,433
Hudson Yards		5.00%		2/15/2029	Aa3		3,500		4,364,500
IL Sports Facs Auth (AGM)		5.00%		6/15/2027	AA		3,000		3,376,500
IN Fin Auth - Stadium		5.25%		2/1/2029	AA+		2,500		3,007,250
Kansas City IDA - Downtown Redev Dist		5.00%		9/1/2022	AA-		7,470		7,700,225
LA PFA - Hurricane Recovery		5.00%		6/1/2023	A1		3,200		3,549,024
Los Angeles Co COP - Disney Concert Hall		5.00%		9/1/2022	AA+		1,250		1,345,650
MI St Bldg Auth		5.00%		4/15/2036	Aa2		3,000		3,942,810
MI Strategic Fd - Cadillac Place		5.25%		10/15/2023	Aa2		3,865		4,008,855
MI Strategic Fd - Cadillac Place		5.25%		10/15/2024	Aa2		6,915		7,170,164
Miami Dade Co Sch Dist GO		4.00%		3/15/2034	Aa2		4,535		5,208,992
NJ EDA - Bldgs		5.00%		6/15/2036	Baa1		1,320		1,568,147
NJ EDA - Motor Vehicle Surcharge Sub Rev		5.00%		7/1/2033	BBB		8,450		9,776,228
NJ EDA - Sch Facs		1.69% (MUNIPSA * 1 + 1.60%	)#	3/1/2028	Baa1		5,000		4,999,400
NJ EDA - Sch Facs		4.00%		6/15/2028	Baa1		3,540		3,818,173
NJ EDA - Sch Facs		4.00%		6/15/2030	Baa1		7,500		8,040,825
NJ EDA - Sch Facs		5.00%		6/15/2025	Baa1		5,085		5,982,452
NJ EDA - Sch Facs		5.00%		3/1/2029	Baa1		7,500		8,049,300
NJ EDA - Sch Facs		5.00%		6/15/2034	Baa1		3,000		3,548,820
NJ EDA - Sch Facs		5.00%		6/15/2035	Baa1		1,000		1,180,300
NJ EDA - Sch Facs		5.00%		6/15/2035	Baa1		4,925		5,560,670
NJ EDA - Sch Facs		5.00%		6/15/2042	Baa1		1,400		1,627,696
NJ EDA - Sch Facs		5.25%		9/1/2023	Baa1		6,545		6,593,433
NJ EDA - Sch Facs		5.25%		9/1/2025	Baa1		5,550		5,591,070
NJ EDA - Sch Facs		5.25%		6/15/2032	Baa1		2,865		3,299,477
NJ EDA - Sch Facs		5.50%		6/15/2029	Baa1		3,500		4,293,555
NJ EDA - State House Proj		5.00%		6/15/2033	Baa1		7,215		8,840,756
NJ EDA - State House Proj		5.00%		6/15/2034	Baa1		13,645		16,678,556
NJ EDA - Transit		4.00%		11/1/2037	Baa1		3,000		3,392,130

32 See Notes to Schedule of Investments.

Schedule of Investments (unaudited)(continued)

INTERMEDIATE TAX FREE FUND December 31, 2020

Investments	Interest Rate			Maturity Date	Credit Rating: S&P or Moody’s		Principal Amount (000)		Fair Value
Lease Obligations (continued)
NJ EDA - Transit		4.00%		11/1/2038	Baa1		$	3,000	$	3,380,190
NJ EDA - Transit		5.00%		11/1/2033	Baa1			3,845		4,789,909
NJ Trans Trust Fund		3.25%		6/15/2039	Baa1			2,000		2,071,780
NJ Trans Trust Fund		4.00%		12/15/2031	Baa1			11,195		12,860,144
NJ Trans Trust Fund		4.00%		6/15/2044	Baa1			11,000		12,182,610
NJ Trans Trust Fund		5.00%		6/15/2030	A+			3,000		3,500,580
NJ Trans Trust Fund		5.00%		6/15/2031	A+			2,400		2,786,568
NJ Trans Trust Fund		5.00%		6/15/2031	Baa1			8,000		9,913,360
NJ Trans Trust Fund		5.00%		6/15/2033	Baa1			1,425		1,746,095
NJ Trans Trust Fund		5.00%		12/15/2033	Baa1			25,225		30,855,724
NJ Trans Trust Fund		5.00%		12/15/2034	Baa1			4,895		5,978,851
NJ Trans Trust Fund		5.25%		6/15/2043	Baa1			4,580		5,524,533
NYC TFA - Bldg Aid Sch Dist		5.00%		7/15/2028	AA			1,500		1,762,215
NYC TFA Sch Dist		5.00%		7/15/2035	AA			10,000		12,058,800
Oakland/Alameda Co Coliseum
Auth - Oakland Coliseum		5.00%		2/1/2021	Aa3			8,750		8,776,600
Philadelphia Redev Auth		5.00%		4/15/2022	A			5,195		5,483,426
Philadelphia Redev Auth		5.00%		4/15/2028	A			4,380		5,124,819
San Diego Conv Ctr Fing Auth		5.00%		4/15/2021	AA-			3,750		3,788,025
San Jose Fing Auth - Civic Ctr		5.00%		6/1/2023	AA			1,000		1,115,640
South Florida Wtr Mgt Dist		5.00%		10/1/2027	AA			2,000		2,439,780
VA Pub Bldg Auth		5.00%		8/1/2030	AA+			8,395		11,361,037
Total										343,581,212
Other Revenue 4.02%
Black Belt Energy Gas District:
Gas Prepay Revenue Bonds (Project #4)		4.00%	#(a)	12/1/2049	A2			12,675		14,638,231
Brooklyn Arena LDC - Barclays Ctr		5.00%		7/15/2042	Ba1			7,600		8,584,352
Brooklyn Arena LDC - Barclays Ctr (AGM)		4.00%		7/15/2029	AA			1,500		1,708,245
CA Infra & Econ Dev - Broad Museum		5.00%		6/1/2021	Aa1			5,425		5,530,299
CA Infra & Econ Dev - Gladstone Instn		5.25%		10/1/2026	A	(d)		10,250		10,629,660
CA Sch Fin Auth - Aspire†		5.00%		8/1/2036	BBB			1,600		1,850,544
Chester Co IDA - Collegium Chtr Sch		5.25%		10/15/2032	BB			6,410		6,664,349
Cleveland Arpt		5.00%		1/1/2028	A2			2,500		2,619,000
Cleveland Arpt		5.00%		1/1/2029	A2			2,500		2,619,000
Cleveland Co Port Auth - Playhouse Sq		5.00%		12/1/2033	BB+			2,000		2,165,340
Cleveland Co Port Auth - Playhouse Sq		5.25%		12/1/2038	BB+			1,650		1,790,877
Clifton Higher Ed - Idea Pub Schs		3.75%		8/15/2022	A-			1,170		1,201,613

See Notes to Schedule of Investments. 33

Schedule of Investments (unaudited)(continued)

INTERMEDIATE TAX FREE FUND December 31, 2020

Investments	Interest Rate			Maturity Date	Credit Rating: S&P or Moody’s	Principal Amount (000)		Fair Value
Other Revenue (continued)
Clifton Higher Ed - Intl Ldrshp Sch		6.00%		8/15/2038	NR	$	13,970	$	16,265,271
CT State Revolving Fund		4.00%		2/1/2038	AAA		3,000		3,632,460
DC Rev - Friendship Pub Chtr Sch		5.00%		6/1/2032	BBB		3,000		3,164,250
FL DFC - Renaissance Chtr Sch		7.00%		6/15/2026	NR		3,000		3,090,990
FL DFC - Renaissance Chtr Sch		7.50%		6/15/2033	NR		3,000		3,097,650
Florence Twn IDA - Legacy Trad Sch		5.75%		7/1/2033	BB+		3,000		3,230,820
HI Dept Budget - Hawaiian Electric AMT		3.25%		1/1/2025	Baa2		5,000		5,303,600
HI Harbor System AMT		4.00%		7/1/2034	Aa3		1,625		1,944,036
Houston Hi Ed - Cosmos Fndtn		4.00%		2/15/2022	BBB		260		265,317
Houston Hi Ed - Cosmos Fndtn		5.00%		2/15/2032	BBB		2,250		2,333,363
Indianapolis Local Pub Impt Bd Bk		5.00%		6/1/2024	A1		4,000		4,069,320
KS DFA - Revolving Fund		5.00%		5/1/2031	AAA		5,465		7,327,089
KY Public Energy Auth - Peak Energy		4.00%	#(a)	2/1/2050	A2		26,000		30,986,280
Lower AL Gas Dist - Goldman Sachs		4.00%	#(a)	12/1/2050	A3		14,250		16,456,328
Lower AL Gas Dist - Goldman Sachs		5.00%		9/1/2027	A3		5,000		6,225,050
Main St Nat Gas - Macquarie		5.00%		5/15/2037	A3		6,250		8,843,625
Maricopa Co - Legacy Schools†		5.00%		7/1/2039	BB+		2,055		2,362,654
Maricopa Co IDA - Paradise Schools†		5.00%		7/1/2036	BB+		2,500		2,769,975
MD EDC - Chesapeake Bay Hyatt(b)		5.00%		12/1/2016	NR		700		420,000	(c)
Michigan St Strategic FD Escrow(e)		Zero Coupon		9/1/2020	NR		400		40	(f)
MSR Energy Auth - Citi		6.125%		11/1/2029	BBB+		3,740		4,788,883
NJ EDA - Sch Facs		5.00%		3/1/2027	Baa1		6,900		7,439,994
NYC Cultural - Lincoln Center		4.00%		12/1/2033	A		2,000		2,407,300
NYC Cultural - Lincoln Center		5.00%		12/1/2031	A		1,250		1,667,075
NYC Cultural - Lincoln Center		5.00%		12/1/2032	A		3,500		4,636,135
NYC Cultural - Whitney Museum		5.00%		7/1/2021	A+		5,000		5,001,350
Phoenix IDA - Basis Schs†		5.00%		7/1/2035	BB		2,350		2,583,308
Pima Co IDA - Edkey Chtr Sch†		5.00%		7/1/2035	NR		5,000		5,378,100
SA Energy Acquisition Pub Fac - Goldman Sachs		5.50%		8/1/2023	A3		9,365		10,534,314
St Louis Fin Corp - Convention Center (AGM)		5.00%		10/1/2040	AA		1,750		2,233,245
TX Muni Gas Acq & Supply - Macquarie		5.00%		12/15/2023	A3		5,400		5,859,810
Total									234,319,142
Special Tax 2.58%
Allentown Neighborhood Impt		5.00%		5/1/2031	Baa3		5,500		5,725,445
Allentown Neighborhood Impt†		5.00%		5/1/2032	Ba3		1,250		1,372,550
Allentown Neighborhood Impt†		5.00%		5/1/2033	Ba3		1,000		1,109,740

34 See Notes to Schedule of Investments.

Schedule of Investments (unaudited)(continued)

INTERMEDIATE TAX FREE FUND December 31, 2020

Investments	Interest Rate		Maturity Date	Credit Rating: S&P or Moody’s	Principal Amount (000)		Fair Value
Special Tax (continued)
Allentown Neighborhood Impt†		5.375%	5/1/2042	NR	$	5,500	$	6,023,600
CA Reassmt Dist 12/1 Irvine		4.00%	9/2/2022	A+		1,500		1,585,305
Connecticut Special Transportation Fund: Debt Service		4.00%	9/1/2034	A+		8,075		9,213,090
CT Spl Tax - Trans Infra		5.00%	10/1/2030	A+		9,000		11,690,640
CT Spl Tax - Trans Infra		5.00%	1/1/2032	A+		14,375		18,159,362
Douglas Co - Sterling Ranch		3.375%	12/1/2030	NR		600		619,656
Douglas Co - Sterling Ranch		3.75%	12/1/2040	NR		1,250		1,293,838
Emeryville Redev Agy (AGM)		5.00%	9/1/2024	AA		1,950		2,273,115
Emeryville Redev Agy (AGM)		5.00%	9/1/2025	AA		2,650		3,087,515
Hinsdale Township High School District #86		4.00%	7/15/2039	AAA		6,820		8,031,027
Miami World Ctr CDD		4.75%	11/1/2027	NR		750		818,250
MIDA Mount Village PID		4.50%	8/1/2040	NR		1,250		1,326,050	(c)
NYC IDA - Yankee Stadium (AGM)		2.50%	3/1/2037	AA		10,435		10,666,240
NYC IDA - Yankee Stadium (AGM)		3.00%	3/1/2036	AA		5,500		6,037,130
NYC IDA - Yankee Stadium (AGM)		3.00%	3/1/2038	AA		8,000		8,721,520
NYC IDA - Yankee Stadium (AGM)		3.00%	3/1/2039	AA		7,000		7,609,280
Orange Co CFD - Esencia		5.00%	8/15/2033	NR		1,370		1,569,253
Orange Co CFD - Esencia		5.00%	8/15/2035	NR		975		1,113,187
Peninsula Town Center†		4.50%	9/1/2028	NR		545		574,070
Peninsula Town Center†		5.00%	9/1/2037	NR		875		937,309
Pittsburg Redev Agy (AGM)		5.00%	8/1/2021	AA		1,875		1,927,331
Pittsburg Redev Agy - Los Medanos (AGM)		5.00%	9/1/2025	AA		3,500		4,230,730
Plaza Met Dist #1†		4.50%	12/1/2030	NR		4,300		4,413,692
River Islands PFA - CFD 2003		5.375%	9/1/2031	NR		2,000		2,145,380
St Louis IDA - Ballpark Vlg		4.375%	11/15/2035	NR		3,955		3,627,566
Village CDD #12		3.25%	5/1/2026	NR		3,855		4,031,366
Village CDD #12†		3.80%	5/1/2028	NR		2,175		2,358,635
Village CDD #12†		4.00%	5/1/2033	NR		1,940		2,136,289
Village CDD #13		3.00%	5/1/2029	NR		500		528,850
Village CDD #13†		3.00%	5/1/2035	NR		3,450		3,567,024
Village CDD #13†		3.25%	5/1/2040	NR		4,320		4,462,258
Village CDD #13		3.375%	5/1/2034	NR		2,580		2,758,097
Village CDD #9		5.00%	5/1/2022	NR		380		391,214
Village CDD #9		5.25%	5/1/2031	NR		1,570		1,629,016
Village CDD #9		5.75%	5/1/2021	NR		435		438,972
Village CDD #9		6.75%	5/1/2031	NR		2,055		2,088,661
Total								150,292,253

See Notes to Schedule of Investments. 35

Schedule of Investments (unaudited)(continued)

INTERMEDIATE TAX FREE FUND December 31, 2020

Investments	Interest Rate		Maturity Date	Credit Rating: S&P or Moody’s		Principal Amount (000)		Fair Value
Tax Revenue 5.06%
Bay Area Rapid Transit Dist		5.00%	7/1/2026	AA+		$	1,000	$	1,201,040
City of Sparks - Legends at Sparks Marina†		2.50%	6/15/2024	Ba2			405		406,904
City of Sparks - Legends at Sparks Marina†		2.75%	6/15/2028	Ba2			1,450		1,461,615
Cook Co Sales Tax		4.00%	11/15/2034	AA-			3,750		4,199,588
CT Spl Tax - Trans Infra		5.00%	5/1/2032	A+			2,750		3,695,588
CT Spl Tax - Trans Infra		5.00%	5/1/2033	A+			3,000		4,005,300
Dallas Area Rapid Trans		5.00%	12/1/2026	AA+			7,245		8,594,091
El Paso Dev Corp - Downtown Ballpark		6.25%	8/15/2023	AA-			5,000		5,620,700
Jacksonville Sales Tax		5.00%	10/1/2021	Aa3			2,500		2,587,225
Jefferson Co - Sch Warrant		5.00%	9/15/2026	AA			2,400		2,993,808
MA Sch Bldg Auth - Sales Tax		5.00%	8/15/2030	AA+			5,665		6,107,890
Martin Hsp Dist		7.00%	4/1/2031	BBB	(d)		3,250		3,281,688
MBTA - Sales Tax		5.00%	7/1/2036	AA			4,145		5,191,861
MD Dept Trans		4.00%	7/1/2037	Aa2			4,660		5,725,928
MD Dept Trans		4.00%	7/1/2039	Aa2			6,435		7,864,020
MD St Trans Auth		3.00%	10/1/2034	AAA			5,510		6,168,776
Met Atlanta Rapid Trans Auth		3.00%	7/1/2037	AA+			4,765		5,326,508
Met Atlanta Rapid Trans Auth		3.00%	7/1/2038	AA+			5,430		6,030,504
Met Atlanta Rapid Trans Auth		5.00%	7/1/2025	AA+			5,950		6,654,182
Met Atlanta Rapid Trans Auth		5.00%	7/1/2032	AA+			5,000		6,161,300
Met Govt Nashville - Cnty Conv Ctr		5.00%	7/1/2022	A+			3,245		3,254,930
Met Pier & Expo Auth - McCormick Place		5.00%	12/15/2022	BBB			5,020		5,343,639
Met Pier & Expo Auth - McCormick Place		5.00%	12/15/2028	BBB			10,090		10,518,421
Miami Dade Co - Transit Rev		5.00%	7/1/2032	AA			7,500		9,870,375
MTA NY - Dedicated Tax		5.00%	11/15/2027	AA			5,700		6,160,047
NJ EDA - Cigarette Tax		5.00%	6/15/2028	BBB			6,650		6,946,523
NJ EDA - Cigarette Tax		5.00%	6/15/2029	BBB			500		521,550
NJ Trans Trust Fund		5.00%	6/15/2031	Baa1			3,200		3,965,344
NY Dorm - PIT		5.00%	3/15/2024	AA+			15,585		15,729,629
NY Dorm - Sales Tax		5.00%	3/15/2028	AA+			11,645		14,017,552
NY UDC - PIT		3.00%	3/15/2040	Aa2			11,435		12,508,518
NY UDC - PIT		4.00%	3/15/2041	Aa2			9,710		11,638,697
NYC TFA - Future Tax		5.00%	2/1/2041	AAA			14,940		17,201,468
NYC TFA - Bldg Aid Sch Dist		5.00%	7/15/2024	AA			10,000		10,248,200
NYC TFA - Future Tax		3.00%	11/1/2037	AAA			2,500		2,755,325
NYC TFA - Future Tax		4.00%	5/1/2038	AAA			10,000		12,187,900
Phoenix Excise Tax		5.00%	7/1/2026	AAA			13,000		15,722,980
PR Corp Sales Tax		Zero Coupon	7/1/2029	NR			1,616		1,374,424

36 See Notes to Schedule of Investments.

Schedule of Investments (unaudited)(continued)

INTERMEDIATE TAX FREE FUND December 31, 2020

Investments	Interest Rate		Maturity Date	Credit Rating: S&P or Moody’s	Principal Amount (000)		Fair Value
Tax Revenue (continued)
PR Corp Sales Tax		Zero Coupon	7/1/2031	NR	$	5,670	$	4,418,234
PR Corp Sales Tax		Zero Coupon	7/1/2033	NR		2,346		1,682,739
PR Corp Sales Tax		Zero Coupon	7/1/2051	NR		5,606		1,255,296
PR Corp Sales Tax		4.329%	7/1/2040	NR		8,325		9,036,288
PR Corp Sales Tax		4.329%	7/1/2040	NR		12,723		13,818,959
PR Corp Sales Tax		4.50%	7/1/2034	NR		1,608		1,762,030
PR Corp Sales Tax		4.536%	7/1/2053	NR		81		88,071
PR Corp Sales Tax		4.55%	7/1/2040	NR		268		294,832
PR Corp Sales Tax		4.75%	7/1/2053	NR		1,967		2,166,572
PR Corp Sales Tax		4.784%	7/1/2058	NR		1,092		1,203,318
PR Corp Sales Tax		5.00%	7/1/2058	NR		4,974		5,555,461
Total								294,525,838
Tobacco 2.67%
Buckeye Tobacco		5.00%	6/1/2055	NR		41,500		46,984,225
Golden St Tobacco		3.50%	6/1/2036	BB-		1,850		1,887,278
Golden St Tobacco		5.00%	6/1/2027	BBB		4,000		5,004,400
Golden St Tobacco		5.00%	6/1/2028	BBB		1,000		1,240,890
Golden St Tobacco		5.00%	6/1/2047	NR		3,100		3,216,002
Golden St Tobacco		5.00%	6/1/2047	NR		6,875		7,132,262
Los Angeles Co Tobacco		4.00%	6/1/2034	A-		980		1,212,554
Los Angeles Co Tobacco		4.00%	6/1/2035	A-		1,300		1,595,594
Los Angeles Co Tobacco		4.00%	6/1/2036	A-		1,195		1,454,972
Los Angeles Co Tobacco		4.00%	6/1/2037	A-		895		1,086,217
Los Angeles Co Tobacco		5.00%	6/1/2049	BBB-		250		306,770
MI Tob Settlement		4.00%	6/1/2034	A-		1,000		1,208,850
MI Tob Settlement		4.00%	6/1/2035	A-		2,000		2,403,320
Nassau Co Tobacco		Zero Coupon	6/1/2060	NR		35,000		1,730,400
Nthrn AK Tobacco		4.625%	6/1/2023	A1		290		294,286
Nthrn CA Tobacco		Zero Coupon	6/1/2045	CCC-		7,500		1,501,650
PA Tob Settlement		5.00%	6/1/2032	A1		3,350		4,229,241
Railsplitter Tobacco Settlement Auth		5.00%	6/1/2027	A		3,325		4,053,341
RI Tob Settlement		5.00%	6/1/2027	BBB		2,500		2,910,250
RI Tob Settlement		5.00%	6/1/2028	BBB		2,000		2,316,960
SD Edu Enhancement Fding Corp		5.00%	6/1/2023	A		1,000		1,103,730
SD Edu Enhancement Fding Corp		5.00%	6/1/2024	A		1,000		1,103,040
SD Edu Enhancement Fding Corp		5.00%	6/1/2025	A		1,040		1,146,028
Suffolk Tobacco Asset Sec Corp		5.375%	6/1/2028	NR		12,020		12,023,846

See Notes to Schedule of Investments. 37

Schedule of Investments (unaudited)(continued)

INTERMEDIATE TAX FREE FUND December 31, 2020

Investments	Interest Rate		Maturity Date	Credit Rating: S&P or Moody’s		Principal Amount (000)		Fair Value
Tobacco (continued)
Tobacco Settlement Auth WA		5.00%	6/1/2021	A		$	6,880	$	7,012,096
Tobacco Settlement Auth WA		5.00%	6/1/2023	A			6,250		6,951,313
Tobacco Settlement Fin Corp LA		5.00%	5/15/2022	A			5,000		5,316,100
Tobacco Settlement Fin Corp NJ		5.00%	6/1/2046	BB+			10,300		12,030,709
Tobacco Settlement Fin Corp NJ		5.25%	6/1/2046	BBB+			5,100		6,217,002
Tobacco Settlement Fin Corp VA		5.00%	6/1/2047	B-			3,690		3,704,871
TSASC		5.00%	6/1/2029	A			5,775		7,147,660
Total									155,525,857
Transportation 22.54%
AK Intl Airports Sys		5.00%	10/1/2024	A1			750		874,020
AK Intl Airports Sys		5.00%	10/1/2027	A1			1,000		1,199,380
AK Intl Airports Sys		5.00%	10/1/2028	A1			2,000		2,390,500
AL Port Auth AMT (AGM)		5.00%	10/1/2026	AA			1,250		1,521,813
AL Port Auth AMT (AGM)		5.00%	10/1/2027	AA			2,000		2,498,960
AL Port Auth AMT (AGM)		5.00%	10/1/2028	AA			2,000		2,483,820
AL Port Auth AMT (AGM)		5.00%	10/1/2029	AA			3,500		4,320,715
Alameda Corridor Trsp Auth		5.00%	10/1/2026	A-			4,075		4,544,603
Alameda Corridor Trsp Auth (AGM)		5.00%	10/1/2034	AA			3,650		4,349,705
Atlanta Arpt		5.50%	1/1/2021	Aa3			3,000		3,000,000
Atlanta Arpt - PFC		5.00%	1/1/2029	Aa3			2,500		2,824,550
Atlanta Arpt - PFC AMT		4.00%	7/1/2034	Aa3			20,615		24,266,741
Atlanta Arpt AMT		4.00%	7/1/2039	Aa3			2,250		2,612,588
Bay Area Toll Auth		4.00%	4/1/2029	AA-			5,800		6,916,848
Broward Co Arpt AMT		5.00%	10/1/2029	A1			1,120		1,458,251
Broward Co Arpt AMT		5.00%	10/1/2033	A1			6,130		7,112,823
Broward Co Arpt AMT		5.00%	10/1/2035	A1			2,500		3,165,025
Broward Co Arpt AMT		5.00%	10/1/2036	A1			2,375		2,996,656
Broward Co Arpt AMT		5.00%	10/1/2037	A1			4,000		5,032,720
CA Muni Fin Auth - LINXS APM Proj AMT		5.00%	12/31/2036	BBB-	(d)		3,215		3,860,926
CA Muni Fin Auth - LINXS APM Proj AMT		5.00%	12/31/2037	BBB-	(d)		7,000		8,386,910
CA Muni Fin Auth - LINXS APM Proj AMT		5.00%	12/31/2047	BBB-	(d)		9,000		10,562,310
CA Sacramento Arpt AMT		5.00%	7/1/2036	A			5,645		6,916,762
Central FL Expressway Auth		4.00%	7/1/2037	A+			7,380		8,325,673
Central TX Mobility Auth		5.00%	1/1/2030	A-			800		938,840
Central TX Mobility Auth		5.00%	1/1/2031	A-			1,675		1,964,825
Central TX Mobility Auth		5.00%	1/1/2032	A-			2,000		2,336,960
Central TX Mobility Auth		5.00%	1/1/2033	BBB+			3,010		3,296,642

38 See Notes to Schedule of Investments.

Schedule of Investments (unaudited)(continued)

INTERMEDIATE TAX FREE FUND December 31, 2020

Investments	Interest Rate		Maturity Date	Credit Rating: S&P or Moody’s	Principal Amount (000)		Fair Value
Transportation (continued)
Central TX Tpk		3.00%	8/15/2040	A	$	2,000	$	2,178,020
Central TX Tpk		5.00%	8/15/2025	A-		2,250		2,621,475
Central TX Tpk		5.00%	8/15/2026	A-		2,500		2,905,275
Central TX Tpk		5.00%	8/15/2027	A-		3,300		3,820,641
Central TX Tpk		5.00%	8/15/2028	A-		3,705		4,274,496
Central TX Tpk		5.00%	8/15/2033	A-		7,650		8,713,197
Chicago Midway Arpt		4.00%	1/1/2034	A-		2,175		2,382,104
Chicago Midway Arpt		5.00%	1/1/2026	A-		6,075		6,832,795
Chicago Midway Arpt AMT		5.00%	1/1/2023	A-		3,000		3,246,270
Chicago Midway Arpt AMT		5.00%	1/1/2026	A-		4,605		5,150,370
Chicago Midway Arpt AMT		5.00%	1/1/2030	A-		5,000		5,521,950
Chicago Midway Arpt AMT		5.00%	1/1/2031	A-		2,000		2,321,240
Chicago O'Hare Arpt		4.00%	1/1/2035	A		15,000		17,787,750
Chicago O'Hare Arpt		5.00%	1/1/2031	A		6,500		7,522,515
Chicago O'Hare Arpt AMT		5.00%	1/1/2021	A		11,740		11,740,000
Chicago O'Hare Arpt AMT		5.00%	1/1/2024	A		5,000		5,228,800
Chicago O'Hare Arpt AMT		5.00%	1/1/2029	A		7,000		8,077,020
Chicago Trans Auth		4.00%	12/1/2050	A+		3,500		3,948,630
Chicago Trans Auth		5.00%	12/1/2045	A+		6,250		7,601,062
Cleveland Arpt (AGM)		5.00%	1/1/2027	AA		2,175		2,521,782
Delaware River & Bay Auth		4.00%	1/1/2044	A1		5,000		5,719,850
Delaware River Port Auth		5.00%	1/1/2027	A		1,835		1,954,073
Delaware River Port Auth		5.00%	1/1/2028	A+		7,500		8,457,000
Delaware River Toll Brdg Commn		5.00%	7/1/2029	A1		1,000		1,270,690
Delaware River Toll Brdg Commn		5.00%	7/1/2030	A1		1,920		2,428,397
Delaware River Toll Brdg Commn		5.00%	7/1/2032	A1		2,025		2,541,132
Denver City & Co Arpt AMT		5.00%	12/1/2031	A		15,000		18,831,450
Denver City & Co Arpt AMT		5.00%	12/1/2035	A		5,000		6,183,500
Denver RTD - Eagle P3		4.00%	1/15/2033	Baa2		850		1,036,890
Denver RTD - Eagle P3		4.00%	7/15/2034	Baa2		7,650		9,276,390
Denver RTD - Eagle P3		4.00%	7/15/2036	Baa2		700		843,850
Denver RTD - Eagle P3		5.00%	1/15/2032	Baa2		950		1,259,254
GA Atlanta Arpt AMT		4.00%	7/1/2038	Aa3		5,200		6,051,708
Grand Parkway Transn Toll		4.00%	10/1/2045	A2		10,000		11,859,400
Greater Orlando Aviation AMT		5.00%	10/1/2029	A1		3,000		3,725,310
Hampton Roads Trans Commn		5.00%	7/1/2032	AA		1,180		1,510,530
Hampton Roads Trans Commn		5.00%	7/1/2033	AA		1,000		1,274,790
Harris Co Toll Rd		5.00%	8/15/2029	Aa1		2,500		3,239,425

See Notes to Schedule of Investments. 39

Schedule of Investments (unaudited)(continued)

INTERMEDIATE TAX FREE FUND December 31, 2020

Investments	Interest Rate		Maturity Date	Credit Rating: S&P or Moody’s		Principal Amount (000)		Fair Value
Transportation (continued)
Harris Co Toll Rd		5.00%	8/15/2030	Aa1		$	1,000	$	1,291,250
Harris Co Toll Rd		5.00%	8/15/2031	Aa1			3,000		3,863,370
HI Airport Sys AMT		5.00%	7/1/2031	A+			1,275		1,606,793
HI Airport Sys AMT		5.00%	7/1/2033	A+			3,300		4,120,578
HI Airport Sys AMT		5.00%	7/1/2034	A+			2,000		2,491,560
HI Airport Sys AMT		5.00%	7/1/2036	A+			5,000		6,197,650
Houston Arpt - Continental Airlines AMT		4.75%	7/1/2024	Ba3			8,500		8,842,125
Houston Arpt - United Airlines AMT		5.00%	7/15/2027	BB-	(d)		1,000		1,124,180
Houston Arpt - United Airlines AMT		5.00%	7/15/2035	B			1,455		1,552,019
Houston Arpt AMT		5.00%	7/1/2021	A			5,000		5,109,250
Houston Arpt AMT		5.00%	7/1/2034	A1			4,850		5,984,075
IL State GO		5.00%	11/1/2025	BBB-			2,000		2,234,420
IL Toll Hwy Auth		5.00%	1/1/2027	AA-			1,000		1,131,730
IL Toll Hwy Auth		5.00%	1/1/2027	AA-			10,600		13,354,304
IL Toll Hwy Auth		5.00%	1/1/2028	AA-			2,535		2,864,094
Kansas City Dev Auth Arpt - Terminal Modernization AMT		5.00%	3/1/2038	A2			6,205		7,641,457
Kansas City IDA - Kansas City Intl Airport AMT		5.00%	3/1/2038	A2			13,500		16,625,250
Kansas City IDA - Kansas City Intl Airport AMT		5.00%	3/1/2039	A2			5,000		6,142,950
KY Tpk Auth		5.00%	7/1/2026	Aa3			5,215		5,587,768
Los Angeles Dept Arpts - LAX		5.00%	5/15/2027	Aa3			2,000		2,379,500
Los Angeles Dept Arpts - LAX		5.00%	5/15/2032	Aa3			5,870		6,870,365
Los Angeles Dept Arpts - LAX AMT		5.00%	5/15/2035	Aa3			11,410		14,523,789
Los Angeles Dept Arpts - LAX AMT		5.00%	5/15/2036	Aa3			10,640		13,500,138
Louisville Regl Airport AMT		5.00%	7/1/2022	A			1,625		1,725,815
Louisville Regl Airport AMT		5.00%	7/1/2023	A			2,250		2,488,365
MA Port Auth AMT		5.00%	7/1/2031	Aa2			7,500		9,760,800
MD EDC - CNX Marine Terminals		5.75%	9/1/2025	BB-			4,000		4,039,720
MD EDC - Port Covington		3.25%	9/1/2030	NR			500		511,240
MD EDC - Port Covington		4.00%	9/1/2040	NR			1,000		1,051,520
MD EDC - Ports America Chesapeake AMT		5.00%	6/1/2044	Baa3			125		140,919
Met Airpt Auth - Dulles Metrorail		4.00%	10/1/2035	A-			1,000		1,165,730
Met Airpt Auth - Dulles Metrorail		4.00%	10/1/2036	A-			1,500		1,742,580
Met Airpt Auth - Dulles Metrorail		4.00%	10/1/2037	A-			1,500		1,736,220
Met DC Arpt AMT		5.00%	10/1/2031	Aa3			5,000		6,071,300
Met Nashville Arpt Auth AMT		5.00%	7/1/2036	A2			7,500		9,619,425

40 See Notes to Schedule of Investments.

Schedule of Investments (unaudited)(continued)

INTERMEDIATE TAX FREE FUND December 31, 2020

Investments	Interest Rate		Maturity Date	Credit Rating: S&P or Moody’s	Principal Amount (000)		Fair Value
Transportation (continued)
Met Nashville Arpt Auth AMT		5.00%	7/1/2037	A2	$	8,750	$	11,186,437
Met Nashville Arpt Auth AMT		5.00%	7/1/2038	A2		5,000		6,374,150
Met Nashville Arpt Auth AMT		5.00%	7/1/2039	A2		5,000		6,358,650
Miami Dade Co Aviation - MIA		5.00%	10/1/2025	A2		3,690		4,310,658
Miami Dade Co Aviation - MIA AMT		5.00%	10/1/2021	A2		1,500		1,549,485
Miami Dade Co Aviation - MIA AMT		5.00%	10/1/2022	A2		1,550		1,669,474
Miami Dade Co Aviation - MIA AMT		5.00%	10/1/2027	A2		5,145		5,925,445
Miami Dade Co Aviation - MIA AMT		5.00%	10/1/2028	A2		3,500		4,015,585
Miami Dade Co Aviation - Mia AMT		5.00%	10/1/2034	A2		11,070		12,547,956
Miami Dade Co Expwy Auth		5.00%	7/1/2022	A		1,750		1,862,070
Miami Dade Co Expwy Auth		5.00%	7/1/2023	A		2,000		2,127,960
Miami Dade Co Expwy Auth		5.00%	7/1/2023	A		2,500		2,767,475
Miami Dade Co Expwy Auth		5.00%	7/1/2024	A		3,500		3,722,320
Minneapolis / St Paul Met Arpts		5.00%	1/1/2028	A		3,500		3,928,855
Minneapolis / St Paul Met Arpts		5.00%	1/1/2029	A+		5,000		6,205,400
Minneapolis / St Paul Met Arpts		5.00%	1/1/2030	A+		5,000		6,171,800
MTA NY		4.75%	11/15/2045	A3		19,000		22,320,820
MTA NY		5.00%	11/1/2023	A3		5,640		5,961,988
MTA NY		5.00%	11/15/2028	A3		13,690		16,363,109
MTA NY		5.00%	11/15/2029	A3		5,000		5,957,750
MTA NY		5.00%	11/15/2031	A3		12,180		12,830,290
MTA NY		5.00%	11/15/2033	A3		4,025		4,742,013
MTA NY		5.00%	11/15/2038	A3		1,500		1,608,675
MTA NY		5.25%	11/15/2028	A3		6,355		7,303,865
MTA NY		5.25%	11/15/2035	A3		7,500		8,214,750
NC Tpk Auth - Triangle Exprs		5.00%	1/1/2032	BBB		1,000		1,199,170
NC Tpk Auth - Triangle Exprs (AGM)		4.00%	1/1/2037	AA		12,895		15,073,223
NC Tpk Auth - Triangle Exprs (AGM)		4.00%	1/1/2038	AA		9,000		10,493,730
NC Tpk Auth - Triangle Exprs (AGM)		5.00%	1/1/2031	AA		1,000		1,212,890
Niagara Frontier Trsp - Buffalo Intl Arpt AMT		5.00%	4/1/2023	A3		3,000		3,262,680
Niagara Frontier Trsp - Buffalo Intl Arpt AMT		5.00%	4/1/2027	A3		3,185		3,572,328
Niagara Frontier Trsp - Buffalo Intl Arpt AMT		5.00%	4/1/2030	A3		365		454,097
Niagara Frontier Trsp - Buffalo Intl Arpt AMT		5.00%	4/1/2031	A3		300		371,112

See Notes to Schedule of Investments. 41

Schedule of Investments (unaudited)(continued)

INTERMEDIATE TAX FREE FUND December 31, 2020

Investments	Interest Rate		Maturity Date	Credit Rating: S&P or Moody’s	Principal Amount (000)		Fair Value
Transportation (continued)
Niagara Frontier Trsp - Buffalo Intl Arpt AMT		5.00%	4/1/2032	A3	$	775	$	953,390
Niagara Frontier Trsp - Buffalo Intl Arpt AMT		5.00%	4/1/2034	A3		865		1,055,983
NJ EDA - Goethals Brdg AMT		5.125%	1/1/2034	BBB		5,010		5,548,174
NJ Tpk Auth		5.00%	1/1/2029	A+		5,000		5,722,050
NJ Tpk Auth		5.00%	1/1/2031	A+		5,000		5,797,200
NJ Tpk Auth		5.00%	1/1/2031	A+		5,000		5,976,850
NJ Tpk Auth		5.00%	1/1/2033	A+		2,100		2,567,439
NJ Tpk Auth		5.00%	1/1/2034	A+		1,500		1,881,510
NJ Trans Trust Fund		4.00%	6/15/2038	Baa1		3,000		3,426,900
NJ Trans Trust Fund		4.00%	6/15/2039	Baa1		3,000		3,418,290
NJ Trans Trust Fund		5.00%	6/15/2028	A+		6,275		7,423,890
NJ Trans Trust Fund CR (AGM)		5.00%	6/15/2024	AA		10,165		10,807,225
North TX Twy Auth		4.00%	1/1/2037	A+		8,740		10,309,180
North TX Twy Auth		5.00%	1/1/2023	A+		5,000		5,464,600
North TX Twy Auth		5.00%	1/1/2025	A+		5,000		5,668,250
North TX Twy Auth		5.00%	1/1/2031	A		8,085		9,124,327
North TX Twy Auth		5.00%	1/1/2035	A+		1,500		2,114,895
North TX Twy Auth		5.00%	1/1/2035	A+		3,500		4,289,985
North TX Twy Auth		5.00%	1/1/2036	A+		5,000		5,933,150
NV State Highway Rev		5.00%	12/1/2030	AAA		10,000		12,632,200
NY Trans Dev Corp - Delta AMT		4.00%	1/1/2036	Baa3		10,010		10,971,661
NY Trans Dev Corp - Delta AMT		4.375%	10/1/2045	Baa3		6,750		7,768,507
NY Trans Dev Corp - Delta AMT		5.00%	1/1/2031	Baa3		3,600		4,306,356
NY Trans Dev Corp - Delta AMT		5.00%	1/1/2033	Baa3		11,000		12,980,550
NY Trans Dev Corp - Delta AMT		5.00%	1/1/2034	Baa3		3,450		4,058,580
NY Trans Dev Corp - Delta AMT		5.00%	1/1/2036	Baa3		7,400		8,669,396
NY Trans Dev Corp - Delta AMT		5.00%	10/1/2040	Baa3		6,750		8,272,395
NY Trans Dev Corp - JFK IAT		4.00%	12/1/2039	Baa1		1,000		1,185,470
NY Trans Dev Corp - JFK IAT		4.00%	12/1/2041	Baa1		3,200		3,748,800
NY Trans Dev Corp - JFK IAT		5.00%	12/1/2035	Baa1		1,500		1,934,130
NY Trans Dev Corp - JFK IAT		5.00%	12/1/2037	Baa1		1,000		1,282,800
NY Trans Dev Corp - JFK IAT AMT		5.00%	12/1/2024	Baa1		750		865,268
NY Trans Dev Corp - JFK IAT AMT		5.00%	12/1/2027	Baa1		1,025		1,263,179
NY Trans Dev Corp - JFK IAT AMT		5.00%	12/1/2031	Baa1		1,000		1,281,420
NY Trans Dev Corp - JFK IAT AMT		5.00%	12/1/2033	Baa1		1,500		1,903,845

42 See Notes to Schedule of Investments.

Schedule of Investments (unaudited)(continued)

INTERMEDIATE TAX FREE FUND December 31, 2020

Investments	Interest Rate		Maturity Date	Credit Rating: S&P or Moody’s	Principal Amount (000)		Fair Value
Transportation (continued)
NY Trans Dev Corp - LaGuardia Airport AMT		4.00%	7/1/2031	Baa3	$	3,000	$	3,198,420
NY Trans Dev Corp - LaGuardia Airport AMT		4.00%	7/1/2032	Baa3		3,000		3,190,620
NY Trans Dev Corp - LaGuardia Airport AMT		4.00%	7/1/2033	Baa3		3,500		3,714,095
NY Trans Dev Corp - LaGuardia Airport AMT		5.00%	7/1/2034	Baa3		2,250		2,490,345
NY Trans Dev Corp - LaGuardia Airport AMT		5.25%	1/1/2050	Baa3		5,000		5,504,950
NY Trans Dev Corp - TOGA AMT		5.00%	1/1/2023	Baa3		750		809,130
NY Twy Auth		5.00%	1/1/2024	A1		1,960		2,224,463
NY Twy Auth		5.00%	1/1/2026	A1		5,115		6,031,813
NY Twy Auth		5.00%	1/1/2033	A1		3,405		4,313,250
NY Twy Auth (AGM)		4.00%	1/1/2040	AA		11,770		14,087,513
Orlando & Orange Co Expwy Auth		5.00%	7/1/2030	A+		10,000		11,084,300
Orlando Arpt Rev AMT		5.00%	10/1/2030	Aa3		15,000		19,629,600
PA Tpk Commn		5.00%	12/1/2022	A+		3,500		3,817,940
PA Tpk Commn		5.00%	12/1/2032	A1		1,500		1,968,675
PA Tpk Commn		5.00%	12/1/2033	A1		1,300		1,703,052
PA Tpk Commn		5.00%	12/1/2034	A1		1,200		1,564,692
PA Tpk Commn		5.00%	12/1/2035	A1		1,800		2,327,292
Phoenix Arpt		5.00%	7/1/2036	Aa3		4,045		4,977,939
Phoenix Arpt AMT		5.00%	7/1/2022	Aa3		1,500		1,593,750
Phoenix Arpt AMT		5.00%	7/1/2029	A1		1,500		1,940,190
Phoenix Arpt AMT		5.00%	7/1/2030	A1		4,245		5,443,066
Phoenix Civic Impt Corp AR		5.00%	7/1/2036	A1		5,000		6,100,950
Port Auth NY & NJ		5.00%	12/1/2023	Aa3		5,300		6,017,037
Port Auth NY & NJ		4.00%	11/1/2037	Aa3		3,540		4,230,760
Port Auth NY & NJ		5.00%	12/1/2025	Aa3		10,000		11,324,900
Port Auth NY & NJ		5.00%	10/15/2026	Aa3		5,605		6,790,121
Port Auth NY & NJ		5.00%	10/15/2027	Aa3		4,750		5,739,330
Port Auth NY & NJ AMT		4.00%	7/15/2037	Aa3		2,000		2,397,820
Port Auth NY & NJ AMT		4.00%	7/15/2038	Aa3		3,000		3,574,620
Port Auth NY & NJ AMT		4.00%	7/15/2039	Aa3		6,000		7,108,500
Port Auth NY & NJ AMT		5.00%	9/15/2026	Aa3		11,385		14,108,178
Port Auth NY & NJ AMT		5.00%	9/15/2028	Aa3		4,000		5,094,640
Port Auth NY & NJ AMT		5.00%	11/1/2030	Aa3		4,100		5,378,790

See Notes to Schedule of Investments. 43

Schedule of Investments (unaudited)(continued)

INTERMEDIATE TAX FREE FUND December 31, 2020

Investments	Interest Rate		Maturity Date	Credit Rating: S&P or Moody’s	Principal Amount (000)		Fair Value
Transportation (continued)
Port Auth NY & NJ AMT		5.00%	10/15/2034	Aa3	$	9,170	$	10,468,472
Port Oakland AMT		5.00%	5/1/2022	A+		11,000		11,637,890
Port of Portland - Portland Intl Arpt AMT		5.00%	7/1/2037	A+		2,420		3,025,944
Port of Portland - Portland Intl Arpt AMT		5.00%	7/1/2038	A+		3,250		4,053,270
Port of Portland - Portland Intl Arpt AMT		5.00%	7/1/2039	A+		3,330		4,143,852
Port Seattle AMT		5.00%	5/1/2033	A+		4,045		4,868,400
Port Seattle AMT		5.00%	4/1/2044	A+		14,870		18,168,612
PR Hwy & Trans Auth(b)		5.00%	7/1/2033	C		1,215		428,288
PR Hwy & Trans Auth(b)		5.50%	7/1/2023	C		4,305		1,517,513
PR Hwy & Trans Auth(b)		5.50%	7/1/2024	C		3,000		1,057,500
PR Hwy & Trans Auth (AGC)		5.25%	7/1/2036	AA		1,560		1,875,245
PR Hwy & Trans Auth (AGM)		5.25%	7/1/2032	AA		1,000		1,192,490
Sacramento Co Arpt AMT		5.00%	7/1/2027	A		5,950		7,465,108
Sacramento Co Arpt AMT		5.00%	7/1/2034	A		4,000		4,925,840
Salt Lake City Arpt AMT		5.00%	7/1/2029	A		3,000		3,767,160
Salt Lake City Arpt AMT		5.00%	7/1/2030	A		2,275		2,785,465
Salt Lake City Arpt AMT		5.00%	7/1/2031	A		3,000		3,660,030
Salt Lake City Arpt AMT		5.00%	7/1/2032	A		8,750		10,629,850
Salt Lake City Arpt AMT		5.00%	7/1/2034	A		4,455		5,380,214
Salt Lake City Arpt AMT		5.00%	7/1/2034	A		14,645		18,011,593
San Diego Arpt		4.00%	7/1/2037	A-		2,000		2,396,200
San Diego Arpt		4.00%	7/1/2038	A-		2,000		2,389,840
San Francisco Arpt AMT		5.00%	5/1/2026	A1		10,000		10,600,600
San Francisco Arpt AMT		5.00%	5/1/2028	A1		7,550		7,985,861
San Francisco Arpt AMT		5.00%	5/1/2037	A1		15,565		19,632,290
San Jose Arpt		5.00%	3/1/2026	A2		1,200		1,361,892
San Jose Arpt		5.00%	3/1/2027	A2		2,260		2,562,614
San Jose Arpt		5.00%	3/1/2028	A2		1,655		1,873,278
San Jose Arpt AMT		5.00%	3/1/2035	A2		1,500		1,794,555
South Carolina Ports AMT		5.00%	7/1/2032	A+		4,225		5,422,196
South Jersey Trans Auth		5.00%	11/1/2021	BBB+		5,305		5,506,908
Southeastern PA Transp Auth - Garvee		5.00%	6/1/2023	AA-		2,500		2,549,250
Triborough Brdg & Tunl Auth		4.00%	11/15/2040	AA-		10,000		11,886,600
Triborough Brdg & Tunl Auth		5.00%	11/15/2029	AA-		5,650		7,130,526
Triborough Brdg & Tunl Auth (NPFGC)(FGIC)		5.50%	11/15/2021	A+		2,595		2,711,178
TX Surface Trans Corp - I-635		4.00%	12/31/2033	Baa2		6,500		7,811,440
TX Surface Trans Corp - I-635		4.00%	12/31/2034	Baa2		6,500		7,778,550

44 See Notes to Schedule of Investments.

Schedule of Investments (unaudited)(continued)

INTERMEDIATE TAX FREE FUND December 31, 2020

Investments	Interest Rate			Maturity Date	Credit Rating: S&P or Moody’s	Principal Amount (000)		Fair Value
Transportation (continued)
TX Surface Trans Corp - I-635		4.00%		12/31/2035	Baa2	$	6,000	$	7,171,080
TX Surface Trans Corp - I-635		4.00%		6/30/2036	Baa2		4,125		4,916,340
TX Surface Trans Corp - I-635		4.00%		12/31/2036	Baa2		5,500		6,536,915
Wayne Co Arpt AMT		5.00%		12/1/2026	A1		1,590		1,899,064
Wayne Co Arpt AMT		5.00%		12/1/2027	A1		2,000		2,379,240
Total									1,312,224,795
Utilities 10.04%
Albuquerque Bernalillo Co Wtr Util		5.00%		7/1/2024	AA+		2,645		3,078,648
Albuquerque Bernalillo Co Wtr Util		5.00%		7/1/2025	AA+		4,000		4,648,200
Appling Co Dev - Oglethorpe Power		1.50%	#(a)	1/1/2038	BBB+		1,250		1,276,850
CA Dept Wtr Res Wtr - Central Valley		5.00%		12/1/2021	NR		45		46,974
CA Poll Ctl - Poseidon Res†		5.00%		7/1/2039	Baa3		5,000		6,020,550
CA Poll Ctl - Poseidon Res AMT†		5.00%		7/1/2037	Baa3		5,570		5,926,703
Central Plains - Goldman Sachs		5.00%		9/1/2027	A3		7,525		8,054,007
Central Plains - Goldman Sachs		5.00%		9/1/2035	BBB+		3,435		4,804,397
Chicago Wastewater		5.00%		1/1/2029	A		4,335		5,303,482
Chicago Wastewater		5.00%		1/1/2030	A		6,500		7,930,195
Chicago Water		5.00%		11/1/2025	A		2,625		3,125,614
Chicago Water (AGM)		5.00%		11/1/2034	AA		6,275		7,642,887
Chicago Water (AGM)		5.00%		11/1/2035	AA		5,000		6,075,200
Chicago Water (AGM)		5.25%		11/1/2030	AA		5,510		6,892,018
Clarion Co IDA - American Wtr AMT		2.45%	#(a)	12/1/2039	A+		2,250		2,468,363
Cleveland Public Pwr (AGM)		4.00%		11/15/2034	AA		1,000		1,224,970
Cleveland Public Pwr (AGM)		4.00%		11/15/2036	AA		1,000		1,216,740
Cleveland Public Pwr (AGM)		4.00%		11/15/2038	AA		1,000		1,209,920
Cleveland Public Pwr (AGM)		5.00%		11/15/2028	AA		700		928,032
Cleveland Public Pwr (AGM)		5.00%		11/15/2033	AA		2,000		2,650,980
DE EDA - NRG Energy		1.25%	#(a)	10/1/2040	BBB-		7,500		7,620,450
DE EDA - NRG Energy		1.25%	#(a)	10/1/2045	BBB-		8,000		8,123,760
Detroit Sewer		5.00%		7/1/2034	A+		2,200		2,568,588
Detroit Sewer		5.00%		7/1/2035	A+		1,835		2,138,931
Guam Waterworks Auth		5.00%		7/1/2029	A-		1,000		1,125,350
Guam Waterworks Auth		5.00%		7/1/2036	A-		1,000		1,165,730
HI Dept Budget - Hawaiian Electric		3.20%		7/1/2039	Baa2		11,120		11,640,305
HI Dept Budget - Hawaiian Electric AMT		3.10%		5/1/2026	Baa2		7,000		7,487,270
Houston Util Sys		5.00%		5/15/2022	AA		3,000		3,198,600
Houston Util Sys		5.00%		11/15/2023	AA		4,000		4,546,560

See Notes to Schedule of Investments. 45

Schedule of Investments (unaudited)(continued)

INTERMEDIATE TAX FREE FUND December 31, 2020

Investments	Interest Rate			Maturity Date	Credit Rating: S&P or Moody’s	Principal Amount (000)		Fair Value
Utilities (continued)
Houston Util Sys		5.00%		11/15/2026	AA	$	5,355	$	6,302,621
Imperial Irrigation Dist		5.00%		11/1/2032	AA-		2,000		2,456,120
IN Muni Pwr		5.00%		1/1/2033	A+		5,210		6,527,869
IN Muni Pwr		5.00%		1/1/2034	A+		4,000		4,996,080
KY Muni Pwr - Prairie State Proj		3.45%	#(a)	9/1/2042	Baa1		5,935		6,352,705
KY Public Energy Auth - BP		4.00%	#(a)	1/1/2049	A1		6,375		7,168,496
KY Public Energy Auth - Morgan Stanley		4.00%	#(a)	4/1/2048	A2		3,200		3,539,648
LA Env Facs - E Baton Rouge Swr		0.875%	#(a)	2/1/2046	A+		15,000		15,036,600
Long Beach Nat Gas - ML		1.579% (3 Mo. LIBOR * .67 + 1.43%	)#	11/15/2026	A2		4,000		4,092,200
Long Island Power Auth		0.85%	#(a)	9/1/2050	A		6,000		6,048,360
Long Island Power Auth		5.00%		9/1/2034	A		2,250		2,833,178
Los Angeles USD		5.00%		7/1/2023	Aa3		10,000		11,188,800
Lower AL Gas Dist - Goldman Sachs		5.00%		9/1/2031	A3		4,005		5,339,826
Lower Colo Riv Auth - Transmn Contract		5.00%		5/15/2034	A		3,190		4,118,322
Lower Colo Riv Auth - Transmn Contract		5.00%		5/15/2035	A		2,430		3,126,171
Lower Colo Riv Auth - Transmn Contract		5.00%		5/15/2036	A		5,055		6,468,530
Lower Colorado River Authority Transmission Services Corp		5.00%		5/15/2036	A		1,760		2,253,750
Luzerne Co IDA - American Wtr AMT		2.45%	#(a)	12/1/2039	A+		4,000		4,427,240
Main St Nat Gas - Citibank		4.00%	#(a)	3/1/2050	A3		18,170		21,349,023
Main St Nat Gas - ML		5.00%		3/15/2021	A2		2,500		2,522,375
Maricopa Co Poll Cntrl - El Paso Elec		3.60%		2/1/2040	Baa2		5,085		5,641,452
Maricopa Co Poll Cntrl - El Paso Elec		3.60%		4/1/2040	Baa2		3,000		3,326,820
MEAG - Proj 1		5.00%		1/1/2021	A2		4,185		4,185,000
MI Strat Fund - Detroit Edison		1.45%	#(a)	8/1/2029	Aa3		3,500		3,512,075
MI Strat Fund - Detroit Edison		1.45%	#(a)	9/1/2030	Aa3		1,000		1,003,450
Miami Dade Co Wtr & Swr		5.00%		10/1/2043	AA-		6,485		8,158,778
Miami-Dade Co Wtr & Swr		4.00%		10/1/2035	AA-		5,000		5,996,850
MO Joint Muni Elec Util Commn		5.00%		1/1/2023	A2		2,000		2,187,100
MO Joint Muni Elec Util Commn		5.00%		1/1/2025	A2		1,500		1,704,795
Modesto Irrigation Dist		5.00%		7/1/2023	A+		1,780		1,992,550
Modesto Irrigation Dist		5.00%		7/1/2024	A+		3,720		4,161,229
Modesto Irrigation Dist		5.00%		7/1/2025	A+		8,410		9,403,053
Monroe Dev Auth - Oglethorpe Power		1.50%	#(a)	1/1/2039	BBB+		1,875		1,915,275
New Orleans Sewer		5.00%		6/1/2021	A		400		407,216
New York St Pwr Auth		4.00%		11/15/2045	AA		3,325		3,958,911

46 See Notes to Schedule of Investments.

Schedule of Investments (unaudited)(continued)

INTERMEDIATE TAX FREE FUND December 31, 2020

Investments	Interest Rate			Maturity Date	Credit Rating: S&P or Moody’s		Principal Amount (000)		Fair Value
Utilities (continued)
North Sumter Co Util Dep Dist		5.00%		10/1/2032	A-		$	8,000	$	8,361,280
Northern CA Gas - Goldman Sachs		4.00%	#(a)	7/1/2049	A3			7,500		8,361,375
Northern CA Pwr - Hydroelec #1		5.00%		7/1/2026	A+			3,600		3,854,880
NYC Muni Water		4.00%		6/15/2037	AA+			3,630		4,374,767
Omaha Pub Pwr Dist		5.00%		2/1/2029	AA			5,000		6,117,150
Philadelphia Gas Works		5.00%		8/1/2026	A			1,000		1,184,710
Philadelphia Gas Works		5.00%		8/1/2027	A			1,000		1,179,290
Philadelphia Gas Works		5.00%		8/1/2028	A			1,250		1,570,963
Philadelphia Gas Works		5.00%		8/1/2029	A			1,700		2,126,462
Philadelphia Gas Works		5.00%		8/1/2030	A			1,425		1,772,444
Philadelphia Gas Works		5.00%		10/1/2033	A			2,390		2,866,972
Philadelphia Water & Wastewater		5.00%		11/1/2029	A+			3,185		4,060,111
Phoenix Civic Impt Corp - Water Sys		5.00%		7/1/2027	AAA			5,010		5,833,293
Piedmont Muni Pwr Agy		5.00%		1/1/2022	A-			4,750		4,766,530
Piedmont Muni Pwr Agy		5.00%		1/1/2024	A-			7,920		7,944,948
PR Aqueduct & Swr Auth		5.00%		7/1/2022	Ca			4,690		4,942,087
PR Aqueduct & Swr Auth		5.25%		7/1/2042	Ca			3,625		3,819,844
PR Elec Pwr Auth(b)		5.00%		7/1/2037	D	(d)		1,035		838,350
PR Elec Pwr Auth(b)		5.00%		7/1/2042	D	(d)		2,390		1,935,900
PR Elec Pwr Auth(b)		5.50%		7/1/2038	D	(d)		2,350		1,915,250
PR Elec Pwr Auth(b)		7.00%		7/1/2033	D	(d)		4,000		3,345,000
PR Elec Pwr Auth(b)		7.00%		7/1/2040	D	(d)		725		606,281
PR Elec Pwr Auth (AGM)		0.671% (3 Mo. LIBOR * ..67 +.52%	)#	7/1/2029	AA			5,720		5,195,648
Riverside Elec		5.00%		10/1/2037	AA-			4,000		5,249,600
Riverside Elec		5.00%		10/1/2038	AA-			5,000		6,545,350
SA Energy Acquisition Pub Fac - Goldman Sachs		5.50%		8/1/2021	A3			2,360		2,429,974
Salt Verde Fin Corp - Citi		5.00%		12/1/2037	A3			7,165		10,234,701
Salt Verde Fin Corp - Citi		5.25%		12/1/2026	A3			7,500		9,274,800
Salt Verde Fin Corp - Citi		5.50%		12/1/2029	A3			5,100		6,792,129
San Antonio Elec & Gas		5.00%		2/1/2029	Aa1			7,340		9,116,427
San Antonio Elec & Gas		5.00%		2/1/2030	Aa1			10,000		12,390,000
SC Pub Service Auth - Santee Cooper		5.00%		12/1/2031	A			2,000		2,722,560
SC Pub Service Auth - Santee Cooper		5.00%		12/1/2032	A			2,670		3,609,867
Seminole Co Wtr & Swr		5.00%		10/1/2024	AA+			4,000		4,705,400
Stockton PFA - Wastewater (BAM)		5.00%		9/1/2024	AA			1,000		1,156,230

See Notes to Schedule of Investments. 47

Schedule of Investments (unaudited)(continued)

INTERMEDIATE TAX FREE FUND December 31, 2020

Investments		Interest Rate			Maturity Date	Credit Rating: S&P or Moody’s		Principal Amount (000)		Fair Value
Utilities (continued)
TEAC - Goldman Sachs			5.25%		9/1/2021	A3		$	3,000	$	3,096,570
TEAC - Goldman Sachs			5.25%		9/1/2024	A3			8,940		10,382,022
TEAC - Goldman Sachs			5.625%		9/1/2026	BBB	(d)		5,000		6,168,500
Texas Water Dev Brd			3.00%		10/15/2033	AAA			4,000		4,639,680
Transbay Pwr Auth			5.00%		10/1/2030	A-	(d)		300		395,445
Transbay Pwr Auth			5.00%		10/1/2031	A-	(d)		300		393,498
Transbay Pwr Auth			5.00%		10/1/2032	A-	(d)		500		651,805
Transbay Pwr Auth			5.00%		10/1/2033	A-	(d)		900		1,167,831
Transbay Pwr Auth			5.00%		10/1/2034	A-	(d)		970		1,255,956
Transbay Pwr Auth			5.00%		10/1/2035	A-	(d)		900		1,161,846
Transbay Pwr Auth			5.00%		10/1/2037	A-	(d)		675		865,721
Transbay Pwr Auth			5.00%		10/1/2039	A-	(d)		1,400		1,786,680
Transbay Pwr Auth			5.00%		10/1/2040	A-	(d)		1,500		1,903,470
TX Muni Gas Acq & Supply - Macquarie			5.00%		12/15/2024	A3			23,000		24,944,190
TX Muni Gas Acq & Supply - Macquarie			5.00%		12/15/2028	A3			2,000		2,152,580
TX Muni Gas Acq & Supply - Macquarie			5.00%		12/15/2029	A3			2,225		2,389,272
TX Muni Gas Acq & Supply - ML			5.25%		12/15/2021	A2			4,710		4,924,211
TX Muni Gas Acq & Supply - ML			5.25%		12/15/2023	A2			2,925		3,326,954
TX Muni Gas Acq & Supply - ML			6.25%		12/15/2026	A2			13,550		16,265,826
Utility Debt Sec Auth - Lipa			5.00%		6/15/2028	AAA			5,915		7,346,785
Western MN Muni Pwr Agy			5.00%		1/1/2023	Aa3			1,500		1,641,270
WV EDA - Wheeling Pwr AMT			3.00%	#(a)	6/1/2037	A-			9,400		9,670,062
Wyandotte CO Unified Govt Utility Sys			5.00%		9/1/2021	A			3,105		3,200,913
Total											584,774,402
Total Municipal Bonds (cost $5,349,177,447)											5,720,276,689
	Interest Rate#		Interest Rate Reset Date(g)		Final Maturity Date
SHORT-TERM INVESTMENTS 0.38%
Variable Rate Demand Notes 0.38%
Health Care 0.17%
WV Hsp - WV United Health Sys	0.23%		1/7/2021		6/1/2033	A			10,000		10,000,000
Transportation 0.19%
Triborough Brdg & Tunl Auth	0.11%		1/4/2021		1/1/2032	Aa1			11,180		11,180,000

48 See Notes to Schedule of Investments.

Schedule of Investments (unaudited)(continued)

INTERMEDIATE TAX FREE FUND December 31, 2020

Investments	Interest Rate#	Interest Rate Reset Date(g)	Final Maturity Date	Credit Rating: S&P or Moody’s	Principal Amount (000)		Fair Value
Utilities 0.02%
NYC Muni Water	0.11%	1/4/2021	6/15/2049	AA+	$	875	$	875,000
Total Short-Term Investments (cost $22,055,000)								22,055,000
Total Investments in Securities 98.61% (cost $5,371,232,447)								5,742,331,689
Cash and Other Assets in Excess of Liabilities 1.39%								80,723,047
Net Assets 100.00%							$	5,823,054,736

AGC	Insured by - Assured Guarantee Corp.
AGM	Insured by - Assured Guaranty Municipal Corporation.
AMBAC	Insured by - AMBAC Assurance Corporation.
AMT	Income from the security may be subject to Alternative Minimum Tax.
BAM	Insured by - Build America Mutual.
COP	Certificates of Participation.
CPI	Consumer Price Index: Rate fluctuate based on CPI.
FGIC	Insured by - Financial Guaranty Insurance Company.
FNMA	Federal National Mortgage Association.
GNMA	Government National Mortgage Association.
GTD	Guaranteed.
LIBOR	London Interbank Offered Rate.
MUNIPSA	SIFMA Municipal Swap Index Yield.
NPFGC	Insured by - National Public Finance Guarantee Corporation.
NR	Not Rated.
SIFMA	Insured by - Securities Industry and Financial Markets Association.
TCRS	Transferable Custodial Receipt.
TRIPS	Tax Refund Intercept Programs.

#	Variable rate security. The interest rate represents the rate in effect at December 31, 2020.
†	Security was purchased pursuant to Rule 144A under the Securities Act of 1933 and, unless registered under such Act or exempted from registration, may only be resold to qualified institutional buyers. At December 31, 2020, the total value of Rule 144A securities was $203,944,689, which represents 3.50% of net assets.
(a)	Variable Rate is Fixed to Float: Rate remains fixed or at Zero Coupon until designated future date.
(b)	Defaulted (non-income producing security).
(c)	Level 3 Investment as described in Note 2(b) in the Notes to Financials. Security valued utilizing third party pricing information without adjustment. Such valuations are based on unobservable inputs. A significant change in third party information could result in a significantly lower or higher value of such Level 3 investments.
(d)	This investment has been rated by Fitch IBCA.
(e)	Stub Rights issued in connection with a plan of reorganization.
(f)	Level 3 Investment as described in Note 2(b) in the Notes to Financials. Security fair valued by the Pricing Committee.
(g)	The interest rate reset date shown represents the date in which the Fund has the right to sell a Variable Rate Demand Note (“VRDN”) back to the issuer for Principal Amount. The interest rate on the VRDN is generally reset daily based on the SIFMA Municipal Swap Index.

See Notes to Schedule of Investments. 49

Schedule of Investments (unaudited)(concluded)

INTERMEDIATE TAX FREE FUND December 31, 2020

The following is a summary of the inputs used as of December 31, 2020 in valuing the Fund’s investments carried at fair value⁽¹⁾:

Investment Type(2)	Level 1		Level 2		Level 3		Total
Long-Term Investments
Municipal Bonds
Corporate-Backed	$	-	$	483,459,689	$	5,266,000	$	488,725,689
Other Revenue		-		233,899,102		420,040		234,319,142
Special Tax		-		148,966,203		1,326,050		150,292,253
Remaining Industries		-		4,846,939,605		-		4,846,939,605
Short-Term Investments
Variable Rate Demand Notes		-		22,055,000		-		22,055,000
Total	$	-	$	5,735,319,599	$	7,012,090	$	5,742,331,689

(1)	Refer to Note 2(b) for a description of fair value measurements and the three-tier hierarchy of inputs.
(2)	See Schedule of Investments for fair values in each industry. The table above is presented by Investment Type. Industries are presented within an Investment Type should such Investment Type include securities classified as two or more levels within the three-tier fair value hierarchy. Each Level 3 security is identified on the Schedule of Investments along with the valuation technique utilized.

A reconciliation of Level 3 investments is presented when the Fund has a material amount of Level 3 investments at the beginning or end of the period in relation to the Fund's net assets. Management has determined not to provide a reconciliation as the balance of Level 3 investments were not considered to be material to the Fund's net assets at the beginning or end of the period.

50 See Notes to Schedule of Investments.

Schedule of Investments (unaudited)

NATIONAL TAX FREE FUND December 31, 2020

Investments	Interest Rate			Maturity Date	Credit Rating: S&P or Moody’s	Principal Amount (000)		Fair Value
MUNICIPAL BONDS 98.13%
Corporate-Backed 7.51%
AR DFA - Big River Steel AMT†		4.75%		9/1/2049	B	$	8,500	$	9,360,200
AZ IDA		3.625%		5/20/2033	BBB		8,578		9,191,112
CA Poll Ctl - Poseidon Res AMT†		5.00%		11/21/2045	Baa3		13,775		14,553,563
CA Poll Ctl - Waste Mgmt AMT		4.30%		7/1/2040	A-		2,575		2,964,237
Chandler AZ IDA - Intel Corp AMT		2.70%	#(a)	12/1/2037	A+		4,000		4,226,680
Fort Bend IDC - NRG Energy		4.75%		5/1/2038	Baa2		3,500		3,696,805
Gloucester Co Poll Ctl - Logan AMT		5.00%		12/1/2024	BBB-		765		807,901
Hoover IDA - US Steel AMT		5.75%		10/1/2049	B-		1,100		1,078,253
IA Fin Auth - Alcoa		4.75%		8/1/2042	BB+		5,000		5,167,600
IA Fin Auth - Iowa Fertilizer Co		3.125%		12/1/2022	BB-		1,500		1,536,480
IA Fin Auth - Iowa Fertilizer Co		5.25%		12/1/2025	BB-		8,500		9,276,135
IL Fin Auth - Navistar†		4.75%	#(a)	10/15/2040	B3		6,750		7,210,080
IL State GO		5.00%		12/1/2036	BBB-		6,700		7,588,621
IN Fin Auth - OH River Brdgs AMT		5.00%		7/1/2048	BBB+		1,400		1,492,778
IN Fin Auth - OVEC		3.00%		11/1/2030	Ba1		1,000		1,069,930
IN Fin Auth - OVEC		3.00%		11/1/2030	Ba1		3,600		3,851,748
LA Env Facs - Westlake Chem		3.50%		11/1/2032	Baa2		21,355		23,689,956
LA St John Parish - Marathon Oil		2.00%	#(a)	6/1/2037	BBB-		9,555		9,699,949
LA St John Parish - Marathon Oil		2.10%	#(a)	6/1/2037	BBB-		8,000		8,198,320
LA St John Parish - Marathon Oil		2.125%	#(a)	6/1/2037	BBB-		2,750		2,820,510
LA St John Parish - Marathon Oil		2.20%	#(a)	6/1/2037	BBB-		1,810		1,869,748
LA St John Parish - Marathon Oil		2.375%	#(a)	6/1/2037	BBB-		3,125		3,256,813
Love Field Arpt - Southwest Airlines		5.25%		11/1/2040	Baa1		3,840		3,855,360
Love Field Arpt - Southwest Airlines AMT		5.00%		11/1/2028	Baa1		2,845		3,056,384
Matagorda Co Nav Dist - AEP TX Central		2.60%		11/1/2029	A-		8,100		8,829,081
MD EDC - AFCO AMT		4.00%		7/1/2039	BBB		5,625		6,385,275
MD EDC - Chesapeake Bay Hyatt(b)		5.00%		12/1/2016	NR		855		513,000	(c)
Mission Econ Dev Corp - Natgasoline AMT†		4.625%		10/1/2031	BB-		5,250		5,582,640
National Fin Auth NH - Covanta†		4.625%		11/1/2042	B1		1,500		1,546,755
NH National Fin Auth - Covanta†		3.625%	#(a)	7/1/2043	B1		690		698,708
NH National Fin Auth - Covanta AMT†		3.75%	#(a)	7/1/2045	B1		1,315		1,332,476
NH National Fin Auth - Covanta AMT†		4.875%		11/1/2042	B1		5,000		5,185,450
NH National Fin Auth - Hsg Sec		4.125%		1/20/2034	NR		6,915		7,771,397
Niagara Area Dev Corp - Covanta†		3.50%		11/1/2024	B1		2,500		2,576,200
Niagara Area Dev Corp - Covanta AMT†		4.75%		11/1/2042	B1		5,000		5,170,650
NY Energy RDA - NYSEGC		3.50%		10/1/2029	A-		800		952,360

See Notes to Schedule of Investments. 51

Schedule of Investments (unaudited)(continued)

NATIONAL TAX FREE FUND December 31, 2020

Investments	Interest Rate			Maturity Date	Credit Rating: S&P or Moody’s	Principal Amount (000)		Fair Value
Corporate-Backed (continued)
NY Env Facs - Casella Waste AMT		2.75%	#(a)	9/1/2050	B	$	1,300	$	1,346,007
NY Env Facs - Casella Waste AMT†		3.125%	#(a)	12/1/2044	B		3,000		3,153,180
NY Liberty Dev Corp - 3 WTC†		5.00%		11/15/2044	NR		7,000		7,546,350
NY Trans Dev Corp - American Airlines AMT		5.25%		8/1/2031	B-		1,120		1,267,515
NY Trans Dev Corp - American Airlines AMT		5.375%		8/1/2036	B-		1,500		1,706,115
NYC IDA - TRIPS AMT		5.00%		7/1/2028	BBB+		11,005		11,543,144
OH Air Dev Auth - AEP		2.40%	#(a)	12/1/2038	BBB+		1,665		1,766,315
OH Air Dev Auth - AEP AMT		2.10%	#(a)	7/1/2028	BBB+		5,000		5,248,250
OH Air Dev Auth - AEP AMT		2.50%	#(a)	8/1/2040	BBB+		2,500		2,745,550
OH Air Dev Auth - AEP AMT		2.60%	#(a)	6/1/2041	BBB+		1,960		2,081,344
OH Air Dev Auth - OVEC		3.25%		9/1/2029	Ba1		3,450		3,762,604
OH Air Quality - AMG Vanadium AMT†		5.00%		7/1/2049	B-		4,630		5,100,501
PA EDA - Covanta AMT†		3.25%		8/1/2039	B1		5,535		5,551,605
PA EDA - US Airways		8.00%		5/1/2029	B-		1,475		1,481,151
Parish of St James - Nustar Logistics†		5.85%	#(a)	8/1/2041	BB-		1,000		1,117,640
Parish of St James - Nustar Logistics†		6.10%	#(a)	12/1/2040	BB-		1,250		1,542,375
Parish of St James - Nustar Logistics†		6.35%		7/1/2040	BB-		3,250		4,075,727
Parish of St James - Nustar Logistics†		6.35%		10/1/2040	BB-		2,500		3,135,175
Phenix City - Meadwestvaco AMT		4.125%		5/15/2035	BBB		2,500		2,596,075
Phenix City IDB - Meadwestvaco		3.625%		5/15/2030	BBB		3,050		3,166,205
Port Beaumont Nav Dis - Jefferson Rail AMT†		4.00%		1/1/2050	NR		3,150		3,174,255
Richland Co Env Impt - Intl Paper AMT		3.875%		4/1/2023	BBB		6,625		7,145,460
Salem Co Poll Ctl - Chambers AMT		5.00%		12/1/2023	BBB		9,270		9,786,802
Selma IDB - Intl Paper		2.00%	#(a)	11/1/2033	BBB		2,000		2,115,560
Tuscaloosa IDA - Hunt Refining†		4.50%		5/1/2032	NR		4,500		5,042,970
Tuscaloosa IDA - Hunt Refining†		5.25%		5/1/2044	NR		3,300		3,772,560
VA Small Bus Fing - Covanta AMT†		5.00%	#(a)	1/1/2048	B		910		943,807
Valparaiso Facs - Pratt Paper AMT		7.00%		1/1/2044	NR		2,000		2,263,820
West Pace Coop Dist(b)		9.125%		5/1/2039	NR		4,900		3,724,000	(c)
WI PFA - American Dream†		5.00%		12/1/2027	NR		2,000		1,802,040
WI PFA - American Dream†		6.50%		12/1/2037	NR		3,000		2,680,710
WI PFA - Celanese AMT		4.30%		11/1/2030	BBB-		1,035		1,157,368
WI PFA - TRIPS AMT		5.00%		7/1/2042	BBB+		3,500		3,642,835
WI Pub Fin Auth - Celanese		4.05%		11/1/2030	BBB-		500		552,825
Total									303,800,995

52 See Notes to Schedule of Investments.

Schedule of Investments (unaudited)(continued)

NATIONAL TAX FREE FUND December 31, 2020

Investments	Interest Rate		Maturity Date	Credit Rating: S&P or Moody’s	Principal Amount (000)		Fair Value
Education 4.50%
Build NYC Res Corp - CUNY		5.00%	6/1/2034	Aa2	$	325	$	373,201
CA Ed Facs - Chapman Univ		5.00%	4/1/2045	A2		5,000		5,703,050
CA Ed Facs - Stanford Univ		5.00%	5/1/2045	AAA		5,505		8,799,908
CA Sch Fin Auth - Green Dot Schs†		5.00%	8/1/2045	BBB-		1,500		1,663,110
Cap Trust Ed - Advantage Charter Scho		5.00%	12/15/2049	Baa3		1,000		1,093,740
Cap Trust Ed - Advantage Charter Scho		5.00%	12/15/2054	Baa3		700		762,335
Chicago Brd Ed		5.00%	12/1/2044	BB-		1,750		1,962,502
Chicago Brd Ed		5.00%	12/1/2046	BB-		3,500		3,904,110
Davie Edu Facs - Nova Southeastern Univ		6.00%	4/1/2042	A-		3,040		3,430,002
Detroit Sch Dist		5.00%	5/1/2029	Aa1		4,000		4,238,600
Dutchess Co LDC - Anderson Ctr		6.00%	10/1/2030	BB+		810		811,353
Dutchess Co LDC - Bard College†		5.00%	7/1/2045	BB+		1,000		1,104,060
Dutchess Co LDC - Bard College†		5.00%	7/1/2051	BB+		1,500		1,643,520
FL HI Ed - Nova Southeastern Univ		5.00%	4/1/2033	A-		1,475		1,716,590
FL HI Ed - Nova Southeastern Univ		5.00%	4/1/2036	A-		2,000		2,315,020
Fulton Co Dev - Tuff/Atlanta Hsg		5.00%	9/1/2032	A+		775		791,810
Hempstead Town LDC - Adelphi Univ		5.00%	10/1/2034	A-		175		193,412
IA HI Ed - Des Moines Univ		5.00%	10/1/2038	BBB+		2,730		3,418,315
IA Higher Ed - Des Moines Univ		5.00%	10/1/2039	BBB+		2,870		3,582,592
IA Higher Ed - Des Moines Univ		5.00%	10/1/2040	BBB+		3,535		4,404,292
IL Fin Auth - IL Inst of Tech		4.00%	9/1/2037	Baa3		3,115		3,435,720
IL Fin Auth - IL Inst of Tech		4.00%	9/1/2039	Baa3		3,295		3,612,901
IL Fin Auth - IL Inst of Tech		5.00%	9/1/2040	Baa3		2,020		2,414,264
IL Fin Auth - Univ Chicago		4.00%	10/1/2049	Aa2		6,000		6,311,160
LA PDA - Tulane Univ		4.00%	4/1/2050	A		6,000		6,860,460
LA PDA - Tulane Univ		5.00%	4/1/2045	A		5,000		6,289,000
MA DFA - Suffolk Univ		5.00%	7/1/2030	Baa2		1,500		1,813,785
MA DFA - Suffolk Univ		5.00%	7/1/2032	Baa2		3,750		4,478,850
MA DFA - Suffolk Univ		5.00%	7/1/2033	Baa2		1,250		1,487,200
MA DFA - Suffolk Univ		5.00%	7/1/2034	Baa2		1,600		1,897,616
Miami Dade Cnty Ed Facs - Univ of Miami FL		5.00%	4/1/2053	A-		5,000		5,856,350
Nashville Hlth & Ed - Lipscomb U		5.25%	10/1/2058	BBB		6,065		6,802,201
NY Dorm - Mt Sinai Sch Med		5.00%	7/1/2040	A-		5,000		5,713,950
NY Dorm - NYU		5.00%	7/1/2030	Aa2		2,155		2,415,130
NY Dorm - NYU		5.00%	7/1/2031	Aa2		4,215		4,723,793
NY Dorm - Pace Univ		5.00%	5/1/2029	NR		10		11,102
NY Dorm - Pace Univ		5.00%	5/1/2029	BBB-		245		261,329

See Notes to Schedule of Investments. 53

Schedule of Investments (unaudited)(continued)

NATIONAL TAX FREE FUND December 31, 2020

Investments	Interest Rate			Maturity Date	Credit Rating: S&P or Moody’s		Principal Amount (000)		Fair Value
Education (continued)
NY Dorm - Touro Clg		5.00%		1/1/2047	BBB-	(d)	$	6,500	$	7,038,330
NY Dorm - Touro Clg		5.50%		1/1/2039	BBB-	(d)		2,450		2,627,551
NYC IDA - Yankee Stadium (AGC)		Zero Coupon		3/1/2030	AA			8,000		6,563,440
NYC IDA - Yankee Stadium (AGM)		3.00%		3/1/2049	AA			6,135		6,450,768
NYC IDA - Yankee Stadium (AGM)		4.00%		3/1/2045	AA			2,400		2,809,032
PA HI Ed - Drexel Univ (AGM)		4.00%		5/1/2041	AA			3,425		4,008,723
PA HI Ed - Drexel Univ (AGM)		4.00%		5/1/2050	AA			3,500		4,015,025
Troy Cap Res Corp - RPI		4.00%		9/1/2040	A3			4,435		4,998,422
Univ of CT		5.25%		11/15/2047	A+			8,080		10,164,640
Univ of Illinois (AGM)		4.00%		4/1/2038	AA			4,965		5,727,723
Univ of North Carolina - Wilmington		5.00%		6/1/2037	A1			7,055		8,031,906
WI PFA - Wingate Univ		5.25%		10/1/2038	BBB			2,220		2,471,637
WI PFA - Wingate Univ		5.25%		10/1/2043	BBB			1,000		1,099,860
Total										182,303,390
Energy 0.59%
Main St Nat Gas - Macquarie		5.00%		5/15/2038	A3			3,745		5,340,408
New Mexico Energy Acq Auth - RBC		5.00%	#(a)	11/1/2039	Aa2			10,000		11,834,000
TX Muni Gas Acq & Supply - Macquarie		5.00%		12/15/2030	A3			6,285		6,738,651
Total										23,913,059
Financial Services 0.20%
MA Ed Fin Auth AMT		4.125%		7/1/2046	BBB			5,000		5,281,150
NJ Higher Ed Assistance Auth AMT		3.75%		12/1/2031	Aaa			2,500		2,700,600
Total										7,981,750
General Obligation 11.17%
Atlantic City Brd Ed (AGM)		6.00%		4/1/2034	AA			550		557,233
Beaverton Sch Dist		5.00%		6/15/2036	AA+			8,000		10,008,080
Bellwood GO		6.15%		12/1/2032	A			2,765		3,047,224
CA State GO		4.00%		9/1/2037	Aa2			5,000		5,789,500
CA State GO		5.00%		4/1/2032	Aa2			2,450		3,511,609
CA State GO		5.00%		2/1/2033	Aa2			10,000		10,495,800
CA State GO		5.00%		8/1/2038	Aa2			3,700		4,542,305
CA State GO		5.25%		8/1/2032	Aa2			7,500		9,089,250
Chicago Brd Ed		5.00%		12/1/2029	BB-			2,000		2,334,780
Chicago Brd Ed		5.00%		12/1/2030	BB-			2,070		2,412,771
Chicago Brd Ed		5.00%		12/1/2031	BB-			1,000		1,160,660
Chicago Brd Ed		5.00%		12/1/2032	BB-			1,250		1,462,438

54 See Notes to Schedule of Investments.

Schedule of Investments (unaudited)(continued)

NATIONAL TAX FREE FUND December 31, 2020

Investments	Interest Rate		Maturity Date	Credit Rating: S&P or Moody’s	Principal Amount (000)		Fair Value
General Obligation (continued)
Chicago Brd Ed		5.00%	12/1/2033	BB-	$	1,750	$	2,039,310
Chicago Brd Ed		5.00%	12/1/2042	BB-		575		589,714
Chicago Brd Ed		5.00%	12/1/2046	BB-		1,500		1,692,825
Chicago Brd Ed		6.50%	12/1/2046	BB-		1,100		1,313,422
Chicago Brd Ed†		7.00%	12/1/2046	BB-		1,200		1,517,868
Chicago Brd Ed (AGM)		5.00%	12/1/2027	AA		1,850		2,297,737
Chicago Brd Ed (NPFGC)(FGIC)		Zero Coupon	12/1/2030	Baa2		1,765		1,314,254
Chicago GO		5.00%	1/1/2026	BBB+		5,175		5,809,972
Chicago GO		5.00%	1/1/2029	BBB+		3,000		3,456,780
Chicago GO		5.00%	1/1/2030	BBB+		2,000		2,311,900
Chicago GO		5.00%	1/1/2033	BBB+		2,350		2,391,995
Chicago GO		5.00%	1/1/2034	BBB+		4,150		4,222,044
Chicago GO		5.00%	1/1/2034	BBB+		5,500		5,840,890
Chicago GO		5.00%	1/1/2036	BBB+		3,975		4,213,500
Chicago GO		5.00%	1/1/2040	BBB+		5,000		5,005,750
Chicago GO		5.50%	1/1/2033	BBB+		2,255		2,492,023
Chicago GO		5.50%	1/1/2034	BBB+		2,400		2,647,344
Chicago GO		5.50%	1/1/2035	BBB+		230		253,522
Chicago GO		5.50%	1/1/2037	BBB+		2,745		3,015,849
Chicago GO		5.50%	1/1/2040	BBB+		2,000		2,190,500
Chicago GO		5.50%	1/1/2042	BBB+		5,000		5,471,850
Chicago GO		5.50%	1/1/2049	BBB+		13,265		15,605,211
Chicago GO		5.625%	1/1/2030	BBB+		525		615,022
Chicago GO		6.00%	1/1/2038	BBB+		19,430		22,766,131
Chicago O’Hare Arpt AMT		5.00%	1/1/2052	A		9,375		10,843,406
Clark Co SD (AGM)		4.00%	6/15/2038	AA		1,200		1,445,676
Clark Co SD (AGM)		4.00%	6/15/2040	AA		1,975		2,367,433
Cook Co GO		5.00%	11/15/2030	A+		1,000		1,190,920
Cook Co GO		5.00%	11/15/2031	A+		2,150		2,551,943
Cook Co GO		5.00%	11/15/2034	A+		500		588,510
Cook Co GO		5.00%	11/15/2035	A+		1,000		1,174,470
Cook Co GO		5.25%	11/15/2024	A+		1,500		1,556,775
Cook Co GO TCRS (BAM)		5.00%	11/15/2024	AA		10,000		10,788,000
CT State GO		4.00%	6/1/2037	A1		1,000		1,219,280
CT State GO		4.00%	6/15/2037	A1		975		1,147,292
CT State GO		4.00%	6/1/2038	A1		750		911,805
CT State GO		4.00%	6/1/2039	A1		600		727,578
CT State GO		5.00%	11/1/2027	A1		10,000		10,371,200

See Notes to Schedule of Investments. 55

Schedule of Investments (unaudited)(continued)

NATIONAL TAX FREE FUND December 31, 2020

Investments	Interest Rate		Maturity Date	Credit Rating: S&P or Moody’s	Principal Amount (000)		Fair Value
General Obligation (continued)
CT State GO		5.00%	11/1/2028	A1	$	10,000	$	10,362,800
CT State GO		5.00%	6/15/2032	A1		1,250		1,593,625
CT State GO		5.00%	6/15/2033	A1		1,250		1,585,500
CT State GO		5.00%	4/15/2036	A1		1,150		1,478,256
CT State GO		5.00%	6/15/2038	A1		1,000		1,252,050
CT State GO		5.00%	4/15/2039	A1		1,650		2,104,262
Hamilton Co Sch Dist GO		4.00%	1/15/2055	Aa2		7,000		7,862,330
Hillsborough Co		3.25%	8/1/2048	AAA		7,690		8,592,345
IL State GO		4.00%	10/1/2038	BBB-		2,500		2,713,350
IL State GO		4.00%	10/1/2039	BBB-		7,500		8,121,225
IL State GO		4.00%	11/1/2043	BBB-		1,470		1,563,463
IL State GO		4.00%	11/1/2044	BBB-		2,745		2,909,096
IL State GO		5.00%	3/1/2030	BBB-		6,500		6,695,000
IL State GO		5.00%	1/1/2033	BBB-		4,075		4,173,859
IL State GO		5.00%	1/1/2035	BBB-		6,200		6,836,430
IL State GO		5.00%	5/1/2038	BBB-		4,515		5,130,124
IL State GO		5.00%	1/1/2041	BBB-		3,580		3,907,212
IL State GO		5.50%	5/1/2030	BBB-		2,545		3,176,771
IL State GO		5.50%	7/1/2033	BBB-		9,470		10,121,347
IL State GO		5.50%	7/1/2038	BBB-		5,345		5,687,668
IL State GO		5.50%	5/1/2039	BBB-		8,250		9,990,337
Irvine USD - Spl Tax (BAM)		5.00%	9/1/2056	AA		500		589,115
King Co Pub Hsp - Snoqualmie Vly Hsp		5.00%	12/1/2038	NR		5,000		5,248,600
Los Angeles USD		4.00%	7/1/2032	Aa3		3,750		4,742,137
Los Angeles USD		4.00%	7/1/2033	Aa3		2,000		2,509,000
Luzerne Co GO (AGM)		5.00%	11/15/2029	AA		4,215		5,036,082
MA State GO		4.00%	5/1/2048	Aa1		1,000		1,171,660
MI Strategic Fund - I-75 AMT (AGM)		4.25%	12/31/2038	AA		2,500		2,980,625
Middletown CSD		5.25%	12/1/2040	AA		2,500		2,740,000
Midlothian Water Dist (AGM)		Zero Coupon	9/1/2022	AA		2,000		1,930,680
NJ State GO		4.00%	6/1/2031	A3		6,825		8,447,302
NJ State GO		4.00%	6/1/2032	A3		3,175		3,961,035
NJ Trans Trust Fund		Zero Coupon	12/15/2029	Baa1		15,365		12,668,596
NJ Trans Trust Fund (NPFGC)(FGIC)		Zero Coupon	12/15/2030	Baa1		7,010		5,750,443
NYC GO		5.00%	8/1/2027	AA		6,575		7,355,255
PA State GO		4.00%	9/15/2030	Aa3		10,000		11,694,800
PA State GO		4.00%	3/1/2037	Aa3		4,255		5,017,368
Philadelphia GO		5.00%	8/1/2036	A		8,990		10,978,678

56 See Notes to Schedule of Investments.

Schedule of Investments (unaudited)(continued)

NATIONAL TAX FREE FUND December 31, 2020

Investments	Interest Rate			Maturity Date	Credit Rating: S&P or Moody’s		Principal Amount (000)		Fair Value
General Obligation (continued)
Philadelphia GO		5.00%		8/1/2037	A		$	3,250	$	3,952,910
Philadelphia GO		5.25%		7/15/2031	A			2,000		2,268,240
Philadelphia GO		5.25%		7/15/2032	A			3,000		3,402,360
Philadelphia GO		5.25%		7/15/2033	A			1,000		1,134,120
Philadelphia Sch Dist		4.00%		9/1/2038	A2			2,200		2,571,382
Philadelphia Sch Dist		4.00%		9/1/2039	A2			5,600		6,521,368
Philadelphia Sch Dist		5.00%		9/1/2037	A2			1,200		1,426,740
Philadelphia Sch Dist		5.00%		9/1/2038	A2			1,000		1,186,560
Pittsburgh GO (BAM)		5.00%		9/1/2029	AA			1,100		1,292,214
Pittsburgh GO (BAM)		5.00%		9/1/2030	AA			1,585		1,861,963
Pittsburgh GO (BAM)		5.00%		9/1/2032	AA			1,160		1,362,698
PR Comwlth GO(b)		4.75%		7/1/2018	NR			370		275,188
PR Comwlth GO(b)		5.50%		7/1/2027	Ca			1,040		764,400
PR Comwlth GO(b)		5.50%		7/1/2039	Ca			3,000		2,197,500
PR Comwlth GO(b)		8.00%		7/1/2035	Ca			3,250		2,234,375
PR Pub Bldg Auth GTD (AGC)		5.00%		7/1/2036	AA			155		157,128
San Francisco Arpt AMT		5.25%		5/1/2042	A1			4,000		4,855,120
Stockton USD (AGM)		5.00%		7/1/2028	AA			750		798,795
Sweetwater UHSD (BAM)		5.00%		8/1/2027	AA			500		573,345
Tuscaloosa Co Brd of Ed		5.00%		8/1/2046	AA-			5,000		6,281,850
Union Co Util Auth - Covanta GTD AMT		4.75%		12/1/2031	AA+			4,000		4,107,520
Wilkes Barre PA School District (BAM)		5.00%		4/15/2059	AA			2,500		3,098,600
Yosemite CCD		5.00%		8/1/2029	Aa2			500		599,815
Total										451,973,968
Health Care 16.30%
Allegheny County Health Network		4.00%		4/1/2037	A			3,120		3,564,194
Allen Co - Bon Secours Mercy Hlth		5.00%		12/1/2046	A+			8,000		10,190,560
Allen Co Hsp - Catholic Hlth Ptnrs		5.00%		5/1/2033	A+			7,065		7,513,557
Antelope Valley Hlth		5.00%		3/1/2041	Ba3			3,000		3,079,260
Antelope Valley Hlth		5.00%		3/1/2046	Ba3			2,615		2,661,547
Baltimore Co - Riderwood Village		4.00%		1/1/2045	A	(d)		5,250		5,746,913
Baltimore Co - Riderwood Village		4.00%		1/1/2050	A	(d)		2,500		2,719,800
Berks Co IDA - Tower Hlth		4.00%		11/1/2038	BB+			5,000		5,055,300
Berks Co IDA - Tower Hlth		5.00%		11/1/2036	BB+			5,000		5,477,000
Berks Co IDA - Tower Hlth		5.00%	#(a)	2/1/2040	BB+			3,285		3,775,615
Berks Co IDA - Tower Hlth		5.00%		11/1/2044	BB+			10,000		10,190,000
CA Fin Auth - Standord Hlth		4.00%		8/15/2050	AA-			4,000		4,793,960

See Notes to Schedule of Investments. 57

Schedule of Investments (unaudited)(continued)

NATIONAL TAX FREE FUND December 31, 2020

Investments	Interest Rate		Maturity Date	Credit Rating: S&P or Moody’s		Principal Amount (000)		Fair Value
Health Care (continued)
CA Hlth - CommonSpirit		4.00%	4/1/2044	BBB+		$	3,750	$	4,345,950
CA Hlth - CommonSpirit		4.00%	4/1/2045	BBB+			3,750		4,325,513
CA Hlth - CommonSpirit		4.00%	4/1/2049	BBB+			2,500		2,865,075
CA Hlth - Sutter Hlth		4.00%	11/15/2042	A+			2,000		2,280,940
CA Htlh - Emante Hlth		4.00%	4/1/2045	A			6,050		7,066,763
CA Muni Fin - Cmnty Med Ctrs		5.00%	2/1/2047	A-			6,940		8,050,747
CA Stwde - Eskaton Pptys		5.25%	11/15/2034	BBB			1,875		1,951,781
CA Stwde - Huntington Memorial Hosp		4.00%	7/1/2048	A-			4,500		5,080,590
CA Stwde - John Muir Hlth		4.00%	12/1/2057	A+			2,500		2,609,950
CA Stwde - Loma Linda Univ Med Ctr		5.50%	12/1/2054	BB-			6,875		7,604,300
CA Stwde - Loma Linda Univ Med Ctr†		5.50%	12/1/2058	BB-			3,375		3,940,110
CO Hlth Fac Auth - CommonSpirit		4.00%	8/1/2038	BBB+			1,850		2,153,659
CO Hlth Facs - CommonSpirit		5.00%	8/1/2044	BBB+			3,000		3,678,540
Cobb CO Kennestone Hsp - Wellstar Hlth		4.00%	4/1/2050	A			5,750		6,678,625
Crawford Hsp Auth - Meadville Med		6.00%	6/1/2046	NR			950		1,045,333
Crawford Hsp Auth - Meadville Med		6.00%	6/1/2051	NR			1,115		1,221,895
CT Hlth & Ed - Yale New Haven Hsp		5.00%	7/1/2028	AA-			500		573,960
CT Hlth - Nuvance		4.00%	7/1/2041	A-			3,180		3,572,348
CT Hlth - Nuvance		4.00%	7/1/2049	A-			20,170		22,283,009
Cuyahoga Co Hsp - Metrohealth		5.00%	2/15/2057	BBB-			1,000		1,135,100
Cuyahoga Co Hsp - Metrohealth		5.50%	2/15/2052	BBB-			8,925		10,602,632
Cuyahoga Co Hsp - Metrohealth		5.50%	2/15/2057	BBB-			5,250		6,204,292
Denver Hlth & Hsp Auth		5.25%	12/1/2045	BBB			700		753,585
Duluth Econ Dev Auth - Essentia Health		5.25%	2/15/2053	A-			2,870		3,450,371
Duluth Econ Dev Auth - Essentia Health		5.25%	2/15/2058	A-			22,000		26,322,780
Escambia Co - Baptist Hlth		4.00%	8/15/2050	BBB+			12,360		13,642,103
Fairview Health Services		5.00%	11/15/2049	A+			5,400		6,584,760
Franklin Co Hlth - OPRS Cmntys		6.125%	7/1/2040	NR			290		314,940
Franklin Co Hlth - OPRS Cmntys		6.125%	7/1/2040	BBB	(d)		4,590		4,791,180
Gainesville & Hall Co Hsp - NE GA Hlth		5.00%	2/15/2030	A			3,345		4,465,742
Gainesville & Hall Co Hsp - NE GA Hlth		5.00%	2/15/2032	A			5,545		7,246,927
Gainesville & Hall Co Hsp–NE GA Hlth GTD		5.50%	8/15/2054	AA-			5,225		6,100,449
Greenville Hlth Sys		5.00%	5/1/2034	A			3,970		4,408,685
Guadalupe Co - Seguin City Hsp		5.00%	12/1/2045	BB			2,000		2,095,360
Hillsborough Co IDA - Tampa General		4.00%	8/1/2045	Baa1			9,280		10,745,405
IL Fin Auth - Centegra Hlth		5.00%	9/1/2034	AA+			235		266,758
IL Fin Auth - Univ of Illinois Hlth		4.00%	10/1/2040	BBB+			1,030		1,163,457
IL Fin Auth - Univ of Illinois Hlth		4.00%	10/1/2050	BBB+			2,500		2,760,850

58 See Notes to Schedule of Investments.

Schedule of Investments (unaudited)(continued)

NATIONAL TAX FREE FUND December 31, 2020

Investments	Interest Rate		Maturity Date	Credit Rating: S&P or Moody’s		Principal Amount (000)		Fair Value
Health Care (continued)
IL Fin Auth - Univ of Illinois Hlth		4.00%	10/1/2055	BBB+		$	2,785	$	3,060,047
IN Fin Auth - Major Hsp		5.00%	10/1/2029	Baa3			1,500		1,697,880
LA Stwde - Childrens Med Ctr		4.00%	6/1/2050	A+			3,775		4,379,529
La Verne COP - Brethren Hillcrest Homes		5.00%	5/15/2036	BBB-	(d)		1,350		1,451,304
Lee Memorial Hlth System		4.00%	4/1/2049	A+			5,500		6,171,165
Lucas Co Hsp - ProMedica Hlth		5.25%	11/15/2048	BBB			7,350		8,548,270
MA DFA - Atrius Hlth		4.00%	6/1/2049	BBB			4,480		4,927,910
MA DFA - Atrius Hlth		5.00%	6/1/2039	BBB			2,000		2,415,580
MA DFA - Boston Med Ctr		5.00%	7/1/2031	BBB			1,980		2,327,094
MA DFA - Boston Med Ctr		5.00%	7/1/2035	BBB			5,115		5,949,819
MA DFA - CareGroup		5.00%	7/1/2048	A			4,000		4,755,080
MA DFA - Partners Hlth		4.00%	7/1/2041	AA-			5,000		5,767,000
MA DFA - Wellforce Hlth		4.00%	7/1/2035	BBB+			2,000		2,245,520
MA DFA - Wellforce Hlth		5.00%	7/1/2039	BBB+			2,685		3,219,422
MA DFA - Wellforce Hlth (AGM)		4.00%	10/1/2045	AA			1,685		1,972,798
Martin Co Hlth - Cleveland Clinic		4.00%	1/1/2046	AA			5,000		5,809,450
Martin Co Hlth - Martin Mem Med		5.50%	11/15/2032	NR			930		972,631
Martin Hsp Dist		7.25%	4/1/2036	BBB	(d)		3,250		3,281,525
MD Hlth & HI Ed - Adventist		5.50%	1/1/2046	Baa3			10,000		11,870,500
MD Hlth & HI Ed - Doctors		5.00%	7/1/2038	Baa3			7,080		8,033,605
MD Hlth & HI Ed - Mercy Med Ctr		5.00%	7/1/2036	BBB+			1,320		1,512,760
MD Hlth & HI Ed - Mercy Med Ctr		5.00%	7/1/2038	BBB+			2,250		2,568,870
MD Hlth & Hi Ed - Mercy Med Ctr		6.25%	7/1/2031	BBB+			11,635		11,955,079
ME Hlth & HI Ed - Mainegeneral Hlth		6.00%	7/1/2026	Ba3			620		631,135
ME Hlth & HI Ed - Mainegeneral Hlth		6.75%	7/1/2036	Ba3			400		407,508
ME Hlth & Hi Ed - MaineGeneral Hlth		7.50%	7/1/2032	Ba3			11,150		11,409,683
Mesquite Hlth - Christian Care Ctrs		5.125%	2/15/2042	B+	(d)		1,000		859,600
MI Fin Auth - Trinity Health		4.00%	12/1/2049	AA-			6,000		6,919,500
MI Hosp Fin Auth - Ascension Hlth		5.00%	11/15/2047	AA+			4,000		5,119,560
MO Hlth Ed - Mercy Hlth		4.00%	6/1/2053	A+			22,000		25,289,440
MO Hlth Ed - Mosaic Hlth		4.00%	2/15/2054	A1			4,450		5,068,239
Montgomery Co Hgr Ed - Thomas Jeff U		4.00%	9/1/2049	A			3,960		4,406,767
Montgomery Co Hosp - Premier		4.00%	11/15/2042	Baa1			8,440		9,276,235
Montgomery Co Hosp - Premier		4.00%	11/15/2045	Baa1			3,900		4,252,170
Montgomery Co IDA - ACTS Retirement		5.00%	11/15/2024	A-	(d)		3,150		3,358,089
Montgomery Co IDA - ACTS Retirement		5.00%	11/15/2025	A-	(d)		1,300		1,385,878
Montgomery Co IDA - Jefferson Hlth		5.00%	10/1/2027	Aa3			4,500		4,770,585
Montgomery Co IDA - Whitemarsh		5.375%	1/1/2050	NR			1,070		1,121,328

See Notes to Schedule of Investments. 59

Schedule of Investments (unaudited)(continued)

NATIONAL TAX FREE FUND December 31, 2020

Investments	Interest Rate		Maturity Date	Credit Rating: S&P or Moody’s		Principal Amount (000)		Fair Value
Health Care (continued)
MT St Fac Fin Auth - Kalispell Med Ctr		5.00%	7/1/2043	BBB		$	4,000	$	4,705,120
MT St Fac Fin Auth - Kalispell Med Ctr		5.00%	7/1/2048	BBB			5,760		6,696,403
Muskingum Co Hsp - Genesis Hlthcare		5.00%	2/15/2044	BB+			2,650		2,760,134
Nassau Co LEAC - Catholic Hlth LI		5.00%	7/1/2034	A-			1,100		1,227,380
Nassau Co LEAC - Catholic Hlth Svcs		5.00%	7/1/2029	A-			1,000		1,130,470
Nassau Co LEAC - Catholic Hlth Svcs		5.00%	7/1/2030	A-			580		653,521
Nassau Co LEAC - Catholic Hlth Svcs		5.00%	7/1/2031	A-			1,620		1,820,459
NE Ed Hlth - Immanuel		4.00%	1/1/2049	AA	(d)		10,000		11,002,200
NH Hlth & Ed - Dartmouth Hitchcock		5.00%	8/1/2059	A			3,110		4,833,313
NJ Hlth - St Peters Univ Hsp		5.75%	7/1/2037	BB+			5,000		5,015,350
NJ Hlth - Univ Hosp (AGM)		5.00%	7/1/2029	AA			135		157,009
NM Hsp - Haverland		5.00%	7/1/2049	BBB-	(d)		3,375		3,702,983
NY Dorm - Montefiore		4.00%	8/1/2036	BBB			1,450		1,613,154
NY Dorm - Montefiore		4.00%	8/1/2038	BBB			1,765		1,953,714
NY Dorm - Montefiore		5.00%	8/1/2033	BBB			1,000		1,206,370
NY Dorm - Montefiore		5.00%	8/1/2034	BBB			1,010		1,215,818
NY Dorm - Montefiore		5.00%	8/1/2035	BBB			1,000		1,201,090
NY Dorm - Montefiore Ob Group		5.00%	8/1/2030	BBB			3,040		3,733,211
NY Dorm - Orange Reg Med Ctr†		5.00%	12/1/2031	BBB-			1,300		1,555,489
NY Dorm - Orange Reg Med Ctr†		5.00%	12/1/2036	BBB-			1,000		1,170,110
NY Dorm - Orange Reg Med Ctr†		5.00%	12/1/2040	BBB-			1,300		1,471,340
NY Dorm - Orange Regl Med Ctr†		5.00%	12/1/2037	BBB-			1,000		1,165,740
NYC Hlth & Hsp Corp		5.00%	2/15/2025	Aa3			2,400		2,410,752
NYC Hlth & Hsp Corp		5.00%	2/15/2030	Aa3			5,640		5,665,267
NYC IDA - Yankee Stadium		3.00%	3/1/2049	Baa1			5,980		6,245,751
OH Hsp - University Hospitals		4.00%	1/15/2050	A			12,000		13,533,240
OK DFA - OU Med		5.50%	8/15/2057	Baa3			7,090		8,466,382
OK DFA - OU Med (AGM)		4.00%	8/15/2048	AA			4,000		4,502,160
Oneida Co - Mohawk Valley Hlth (AGM)		4.00%	12/1/2049	AA			4,500		5,134,680
Oroville - Oroville Hsp		5.25%	4/1/2039	BB			1,000		1,121,520
Oroville - Oroville Hsp		5.25%	4/1/2054	BB			1,000		1,096,710
PA Hi Ed - U Penn Hlth		4.00%	8/15/2049	AA			12,000		13,963,680
Palm Beach Co Hlth - Lifespace		5.00%	5/15/2053	BBB	(d)		2,375		2,593,714
Palomar Hlth		5.00%	11/1/2036	BBB			6,025		6,995,748
Palomar Hlth		5.00%	11/1/2039	BBB			5,500		6,339,960
Pell City Spl Care Facs - Noland Hlth		5.00%	12/1/2031	A			4,845		5,013,218
Philadelphia Hsps - Temple Univ Hlth		5.00%	7/1/2031	BBB-			1,000		1,162,100
Philadelphia Hsps - Temple Univ Hlth		5.00%	7/1/2032	BBB-			1,000		1,159,820

60 See Notes to Schedule of Investments.

Schedule of Investments (unaudited)(continued)

NATIONAL TAX FREE FUND December 31, 2020

Investments	Interest Rate		Maturity Date	Credit Rating: S&P or Moody’s		Principal Amount (000)		Fair Value
Health Care (continued)
Philadelphia Hsps - Temple Univ Hlth		5.00%	7/1/2033	BBB-		$	2,950	$	3,414,124
Philadelphia Hsps - Temple Univ Hlth		5.625%	7/1/2036	BBB-			1,250		1,327,475
Pulaski Co Pub Facs - Baptist Hlth		5.00%	12/1/2039	A			5,750		6,453,915
San Buenaventura - Cmnty Mem Hlth		8.00%	12/1/2026	BB			950		1,008,976
Savannah Hosp - St.Joseph’s/Candler		4.00%	7/1/2043	A3			5,000		5,700,500
Savannah Hosp Auth - St.Joseph’s/Candler		4.00%	7/1/2039	A3			2,500		2,881,725
Tampa Hlth & Ed - Moffit Cancer		4.00%	7/1/2045	A2			3,960		4,572,176
Tampa Hlth & Ed - Moffit Cancer		5.00%	7/1/2050	A2			5,350		6,665,458
UCal Med Ctr		5.25%	5/15/2038	AA-			660		732,217
VT Ed & Hlth - Univ of VT Med Ctr		5.00%	12/1/2035	A			4,500		5,393,115
WA Hlth Care - Overlake Hsp		5.00%	7/1/2038	A			4,000		4,476,840
Westchester CO Hlth Care		6.00%	11/1/2030	Baa2			110		110,426
Westchester CO Hlth Care		6.125%	11/1/2037	Baa2			30		30,121
WI Hlth & Ed - Marshfield Hlth Sys		4.00%	2/15/2050	A-			7,580		8,208,079
WI Hlth & Ed - Sauk-Prarie Mem Hsp		5.375%	2/1/2048	B1			840		859,530
WI PFA - ACTS		5.00%	11/15/2041	A-	(d)		1,125		1,347,379
WI PFA - Alabama Proton†		6.85%	10/1/2047	NR			2,160		2,491,430
Total									659,389,291
Housing 2.58%
Alachua Co Hlth - Oak Hammock		8.00%	10/1/2042	NR			300		328,905
CA HFA - MFH		4.00%	3/20/2033	BBB+			18,510		20,876,728
CA HFA - MFH		4.25%	1/15/2035	BBB+			6,868		7,946,595
CA Muni Fin - Caritas Affordable Hsg		5.25%	8/15/2039	A-			650		724,529
CA Muni Fin - UC Berkeley Hsg		5.00%	6/1/2050	Baa3			1,410		1,492,838
Fed Home Loan Mtg Corp		4.60%	12/15/2044	AA+			5,500		5,953,750
LA HFA - Gmf-LA Chateau		8.00%	9/1/2039	CCC			1,285		1,128,873
LA Pub Facs Auth - Provident LSU		5.00%	7/1/2059	A3			2,500		2,952,300
MI HDA		3.60%	10/1/2060	AA			6,330		6,791,837
NY State Hsg		3.15%	11/1/2054	Aa2			2,375		2,469,097
NYC HDC		2.55%	11/1/2045	AA+			23,000		23,271,170
NYC HDC		2.80%	2/1/2050	Aa2			10,000		10,287,000
NYC HDC		3.35%	11/1/2065	AA+			8,870		9,210,874
NYS HFA		2.50%	11/1/2045	Aa2			6,000		6,111,000
Phoenix IDA - ASU Std Hsg		5.00%	7/1/2037	Baa3			1,000		1,105,690
Toledo/Lucas Port Auth - Univ Toledo		5.00%	7/1/2034	BBB-			1,000		1,039,500
Toledo/Lucas Port Auth - Univ Toledo		5.00%	7/1/2039	BBB-			1,500		1,545,795
Toledo/Lucas Port Auth - Univ Toledo		5.00%	7/1/2046	BBB-			1,000		1,024,430
Total									104,260,911

See Notes to Schedule of Investments. 61

Schedule of Investments (unaudited)(continued)

NATIONAL TAX FREE FUND December 31, 2020

Investments	Interest Rate		Maturity Date	Credit Rating: S&P or Moody’s	Principal Amount (000)		Fair Value
Lease Obligations 6.72%
CA Pub Wks - Judicial Council		5.00%	12/1/2028	Aa3	$	5,600	$	5,848,304
CA Pub Wks - Various Cap Proj		5.00%	10/1/2028	Aa3		535		554,399
CA Pub Wks - Various Cap Proj		5.00%	4/1/2033	Aa3		8,500		8,972,090
CA Pub Wks - Various Cap Proj		5.125%	10/1/2031	Aa3		2,500		2,592,950
Erie Co IDA - Buffalo Sch Dist		5.00%	5/1/2026	AA		6,430		7,093,254
Erie Co IDA - Buffalo Sch Dist		5.25%	5/1/2028	AA		7,000		7,111,720
IL Sports Facs Auth (AGM)		5.00%	6/15/2027	AA		3,500		3,939,250
IL Sports Facs Auth (AGM)		5.00%	6/15/2028	AA		865		970,141
IN Fin Auth - OH River Brdgs AMT		5.00%	7/1/2035	BBB+		6,500		7,009,275
IN Fin Auth - OH River Brdgs AMT		5.00%	7/1/2040	BBB+		3,000		3,219,420
IN Fin Auth - OH River Brdgs AMT		5.00%	7/1/2044	BBB+		6,145		6,567,346
IN Fin Auth - Stadium		5.25%	2/1/2032	AA+		5,000		5,958,150
KY Bond Dev Corp - Lexington Conv		4.00%	9/1/2048	A+		6,645		7,301,260
Los Angeles USD COP		5.00%	10/1/2025	A		1,000		1,077,380
Met Pier & Expo Auth - Mccormick Place (AGM)		Zero Coupon	12/15/2056	AA		10,250		3,122,253
Met Pier & Expo Auth - Mccormick Place (NPFGC)(FGIC)		Zero Coupon	12/15/2032	BBB		3,575		2,669,488
MI Fin Auth - Wayne Co Criminal Justice		4.00%	11/1/2048	Aa3		3,500		4,025,455
MI St Bldg Auth		4.00%	4/15/2054	Aa2		6,500		7,571,460
NJ Ed Facs - Higher Ed		4.00%	9/1/2029	Baa1		5,445		5,873,086
NJ EDA - Bldgs		5.00%	6/15/2036	Baa1		1,285		1,526,567
NJ EDA - Bldgs		5.00%	6/15/2047	Baa1		6,050		7,059,140
NJ EDA - Goethals Brdg AMT		5.625%	1/1/2052	BBB		7,500		8,326,500
NJ EDA - Sch Facs		4.75%	6/15/2031	Baa1		1,550		1,797,675
NJ EDA - Sch Facs		5.00%	3/1/2028	Baa1		4,320		4,646,894
NJ EDA - Sch Facs		5.00%	6/15/2041	Baa1		5,050		5,819,923
NJ EDA - Sch Facs		5.00%	6/15/2042	Baa1		4,930		5,731,815
NJ EDA - Sch Facs		5.50%	6/15/2031	Baa1		1,450		1,765,172
NJ EDA - State House		5.00%	6/15/2043	Baa1		4,500		5,347,035
NJ EDA - Transit		5.00%	11/1/2044	Baa1		5,500		6,595,435
NJ Trans Trust Fund		Zero Coupon	12/15/2028	Baa1		10,000		8,533,000
NJ Trans Trust Fund		Zero Coupon	12/15/2031	Baa1		1,935		1,490,918
NJ Trans Trust Fund		Zero Coupon	12/15/2037	Baa1		3,390		2,101,529
NJ Trans Trust Fund		Zero Coupon	12/15/2038	Baa1		6,760		4,033,895
NJ Trans Trust Fund		4.00%	12/15/2031	Baa1		2,125		2,441,073
NJ Trans Trust Fund		4.00%	6/15/2044	Baa1		13,435		14,879,397

62 See Notes to Schedule of Investments.

Schedule of Investments (unaudited)(continued)

NATIONAL TAX FREE FUND December 31, 2020

Investments	Interest Rate		Maturity Date	Credit Rating: S&P or Moody’s		Principal Amount (000)		Fair Value
Lease Obligations (continued)
NJ Trans Trust Fund		4.00%	6/15/2050	Baa1		$	20,485	$	22,484,131
NJ Trans Trust Fund		5.00%	12/15/2023	Baa1			4,425		4,978,612
NJ Trans Trust Fund		5.00%	6/15/2030	A+			3,000		3,500,580
NJ Trans Trust Fund		5.00%	6/15/2031	A+			2,400		2,786,568
NJ Trans Trust Fund		5.00%	12/15/2035	Baa1			4,200	��	5,112,240
NJ Trans Trust Fund		5.00%	12/15/2036	Baa1			3,500		4,238,430
NJ Trans Trust Fund		5.00%	6/15/2038	Baa1			6,760		7,093,268
NJ Trans Trust Fund		5.00%	6/15/2042	Baa1			2,215		2,318,573
NJ Trans Trust Fund		5.00%	6/15/2046	Baa1			12,655		14,940,999
NJ Trans Trust Fund (NPFGC)(FGIC)		Zero Coupon	12/15/2031	Baa1			3,995		3,179,740
NYC TFA - Bldg Aid		5.00%	7/15/2030	AA			10,000		10,669,000
NYC TFA - Bldg Aid		5.00%	7/15/2031	AA			6,000		6,408,060
NYC TFA - Bldg Aid		5.00%	7/15/2035	AA			545		673,876
Sacramento City Fing Auth (AMBAC)		5.25%	12/1/2023	AA-			3,150		3,616,735
St Louis Fin Corp - Convention Center (AGM)		5.00%	10/1/2045	AA			2,500		3,129,075
St Louis Fin Corp - Convention Center (AGM)		5.00%	10/1/2049	AA			2,625		3,255,525
Total									271,958,061
Other Revenue 4.14%
CA Infra & Econ Dev - Acad Motion Pict		5.00%	11/1/2041	Aa2			2,500		2,752,800
CA Infra & Econ Dev - Gladstone Inst		5.25%	10/1/2034	A	(d)		8,100		8,400,024
CA Infra & Econ Dev - Museum of Nat Hist		4.00%	7/1/2050	A2			4,000		4,593,240
CA Sch Fin Auth - Green Dot Charter†		5.00%	8/1/2048	BBB-			1,650		1,929,378
City of Miami Beach - Parking Revs (BAM)		5.00%	9/1/2040	AA			2,000		2,330,060
Clifton Higher Ed - IDEA Pub Schs		5.00%	8/15/2042	A-			275		287,771
Clifton Higher Ed - IDEA Pub Schs		6.00%	8/15/2043	A-			1,000		1,106,730
Clifton Higher Ed - Intl Ldrshp Sch		6.125%	8/15/2048	NR			7,825		9,060,333
DC Rev - Friendship Pub Chtr Sch		5.00%	6/1/2032	BBB			500		527,375
DC Rev - Friendship Pub Chtr Sch		5.00%	6/1/2041	BBB			1,935		2,173,779
DC Rev - KIPP Chtr Sch		6.00%	7/1/2043	NR			1,000		1,142,580
DC Rev - KIPP Chtr Sch		6.00%	7/1/2048	NR			1,000		1,142,580
FL DFC - Mater Admy		5.00%	6/15/2050	BBB			2,135		2,425,766
FL DFC - Mater Admy		5.00%	6/15/2055	BBB			1,500		1,693,395
FL DFC - Renaissance Chtr Sch		7.625%	6/15/2041	NR			5,500		5,682,105
Grand River Hosp Dist (AGM)		5.25%	12/1/2034	AA			1,000		1,219,850
Grand River Hosp Dist (AGM)		5.25%	12/1/2035	AA			1,000		1,208,320

See Notes to Schedule of Investments. 63

Schedule of Investments (unaudited)(continued)

NATIONAL TAX FREE FUND December 31, 2020

Investments	Interest Rate			Maturity Date	Credit Rating: S&P or Moody’s	Principal Amount (000)		Fair Value
Other Revenue (continued)
Grand River Hosp Dist (AGM)		5.25%		12/1/2037	AA	$	1,160	$	1,384,715
Houston Hi Ed - Cosmos Fndtn		5.00%		2/15/2032	BBB		100		103,705
Houston HI Ed - Cosmos Fndtn		5.00%		2/15/2042	BBB		775		799,591
IL Fin Auth - Noble Chrter Schs		6.125%		9/1/2039	BBB		6,000		6,555,720
Indianapolis Local Pub Impt Bd Bk		5.00%		2/1/2031	AA-		7,120		8,044,318
KY Public Energy Auth - Peak Energy		4.00%	#(a)	2/1/2050	A2		11,660		13,896,155
Long Beach Nat Gas - ML		1.599% (3 Mo. LIBOR * ..67 + 1.45%)	#	11/15/2027	A2		9,000		9,196,560
Lower AL Gas Dist - Goldman Sachs		4.00%	#(a)	12/1/2050	A3		2,000		2,309,660
Lower AL Gas Dist - Goldman Sachs		5.00%		9/1/2046	A3		12,500		18,714,000
Main St Nat Gas - Macquarie		5.00%		5/15/2037	A3		2,990		4,230,790
Main St Nat Gas - Macquarie		5.00%		5/15/2043	A3		3,250		3,911,407
Main St Nat Gas - Macquarie		5.00%		5/15/2049	A3		8,150		12,306,581
Maricopa Co IDA - Legacy Schools†		5.00%		7/1/2049	BB+		1,165		1,313,339
Maricopa Co IDA - Legacy Schools†		5.00%		7/1/2054	BB+		1,000		1,123,390
Met Boston Trans Pkg Corp		5.25%		7/1/2033	A1		11,000		11,249,920
MI Fin Auth - Bradford Admy		4.30%		9/1/2030	NR		360		371,477
MI Fin Auth - Bradford Admy		4.80%		9/1/2040	NR		565		584,391
MI Fin Auth - Bradford Admy		5.00%		9/1/2050	NR		925		956,450
Middlesex Co Impt Auth - Heldrich Ctr(b)		6.125%		1/1/2025	NR		1,250		25,000
Middlesex Co Impt Auth - Heldrich Ctr(b)		6.25%		1/1/2037	NR		1,700		34,000
NJ EDA - Team Academy		6.00%		10/1/2043	BBB		3,500		3,861,305
NYC Cultural - Lincoln Center		4.00%		12/1/2033	A		2,000		2,407,300
NYC Cultural - Lincoln Center		4.00%		12/1/2035	A		1,750		2,089,588
NYC Cultural - Lincoln Center		5.00%		12/1/2031	A		1,250		1,667,075
NYC Cultural - Whitney Museum		5.25%		7/1/2026	A+		500		500,145
San Antonio Hotel & Conv Ctr AMT (AMBAC)		5.00%		7/15/2039	A3		7,000		7,004,060
TX Muni Gas Acq & Supply - Macquarie		5.00%		12/15/2031	A3		4,785		5,122,247
Total									167,438,975
Special Tax 1.56%
Allentown Neighborhood Impt		5.00%		5/1/2027	Baa3		250		261,690
Allentown Neighborhood Impt†		5.00%		5/1/2032	Ba3		1,845		2,025,884
Allentown Neighborhood Impt		5.00%		5/1/2035	Baa3		4,800		4,982,928
CT Spl Tax - Trans Infra		5.00%		8/1/2034	A+		3,600		4,236,624
CT Spl Tax - Trans Infra		5.00%		1/1/2037	A+		7,000		8,700,020
CT Spl Tax - Trans Infra		5.00%		1/1/2038	A+		4,250		5,270,553

64 See Notes to Schedule of Investments.

Schedule of Investments (unaudited)(continued)

NATIONAL TAX FREE FUND December 31, 2020

Investments	Interest Rate		Maturity Date	Credit Rating: S&P or Moody’s		Principal Amount (000)		Fair Value
Special Tax (continued)
Gramercy Farms CDD~		Zero Coupon	5/1/2039	NR		$	3,625	$	1,993,750
Gramercy Farms Cmnty Dev Dist(b)		5.25%	5/1/2039	NR			1,340		214	(c)
Inland Valley Redev Agy		5.25%	9/1/2037	A-			4,875		5,489,104
Irvine CFD - Great Park		5.00%	9/1/2044	NR			500		560,575
NJ EDA - Kapkowski Rd Landfill		6.50%	4/1/2028	Ba2			2,325		2,566,219
NYC IDA - Yankee Stadium		4.00%	3/1/2045	Baa1			3,600		4,152,168
PA COP		4.00%	7/1/2046	A			2,375		2,694,651
Rancho Cucamonga Redev Agy (AGM)		5.00%	9/1/2030	AA			1,500		1,737,450
Rancho Cucamonga Redev Agy (AGM)		5.00%	9/1/2031	AA			1,400		1,620,318
Riverside RDA - Housing		Zero Coupon	10/1/2041	A			11,195		15,499,701
San Jose Spl Tax - Conv Ctr		5.50%	5/1/2024	A+			660		667,306
Stone Canyon CID(b)		5.70%	4/1/2022	NR			1,000		260,000
Stone Canyon CID(b)		5.75%	4/1/2027	NR			1,300		338,000
Total									63,057,155
Tax Revenue 4.66%
Casino Reinv Dev Auth		5.25%	11/1/2039	BBB+			3,300		3,464,802
Casino Reinv Dev Auth		5.25%	11/1/2044	BBB+			1,950		2,034,571
Chicago Brd Ed - CIT		5.00%	4/1/2042	A-	(d)		1,800		2,021,292
Chicago Trans Auth		5.00%	12/1/2046	A+			2,835		3,315,221
Chicago Trans Auth		5.25%	12/1/2049	AA			10,000		11,475,000
City of Sparks - Legends at Sparks Marina†		2.50%	6/15/2024	Ba2			340		341,598
City of Sparks - Legends at Sparks Marina†		2.75%	6/15/2028	Ba2			750		756,008
Cook Co Sales Tax		4.00%	11/15/2034	AA-			3,750		4,199,587
CT Spl Tax - Trans Infra		4.00%	5/1/2036	A+			2,500		2,977,975
CT Spl Tax - Trans Infra		4.00%	5/1/2039	A+			3,150		3,719,047
Hudson Yards		5.75%	2/15/2047	AA-			355		357,102
MA Sch Bldg Auth - Sales Tax		4.00%	2/15/2043	AA			1,000		1,173,780
Met Atlanta Rapid Trans Auth		3.25%	7/1/2039	AA+			2,330		2,576,258
Met Pier & Expo Auth - Mccormick Place		5.50%	6/15/2053	BBB			4,415		4,934,469
Met Pier & Expo Auth - McCormick Place (AGM)		Zero Coupon	6/15/2045	AA			3,380		1,591,304
Met Pier & Expo Auth - McCormick Place (AGM)		Zero Coupon	6/15/2046	AA			1,595		719,792
Met Pier & Expo Auth - McCormick Place (NPFGC)(FGIC)		Zero Coupon	12/15/2030	BBB			10,505		8,424,590
Met Pier & Expo Auth - Mccormick Place (NPFGC)(FGIC)		Zero Coupon	12/15/2036	BBB			20,000		12,928,400

See Notes to Schedule of Investments. 65

Schedule of Investments (unaudited)(continued)

NATIONAL TAX FREE FUND December 31, 2020

Investments	Interest Rate		Maturity Date	Credit Rating: S&P or Moody’s		Principal Amount (000)		Fair Value
Tax Revenue (continued)
Met Pier & Expo Auth - Mccormick Place (NPFGC)(FGIC)		Zero Coupon	12/15/2037	BBB		$	15,000	$	9,330,000
Met Pier & Expo Auth - McCormick Place TCRS (BAM)		5.00%	6/15/2053	AA			915		998,970
NY UDC - PIT		3.00%	3/15/2050	AA+			17,500		18,570,300
NY UDC - PIT		5.00%	3/15/2033	AA+			750		821,272
NYC TFA - Future Tax		4.00%	5/1/2037	AAA			3,000		3,464,550
NYC TFA - Future Tax		4.00%	8/1/2042	AAA			1,000		1,145,660
NYC TFA - Future Tax		4.00%	5/1/2044	AAA			1,000		1,147,910
NYC TFA - Future Tax		5.00%	2/1/2036	AAA			1,000		1,131,410
PR Corp Sales Tax		Zero Coupon	7/1/2029	NR			1,271		1,080,998
PR Corp Sales Tax		Zero Coupon	7/1/2031	NR			2,122		1,653,526
PR Corp Sales Tax		Zero Coupon	7/1/2033	NR			2,549		1,828,347
PR Corp Sales Tax		Zero Coupon	7/1/2051	NR			2,798		626,528
PR Corp Sales Tax		4.329%	7/1/2040	NR			8,303		9,018,220
PR Corp Sales Tax		4.329%	7/1/2040	NR			7,602		8,251,515
PR Corp Sales Tax		4.536%	7/1/2053	NR			39		42,405
PR Corp Sales Tax		4.55%	7/1/2040	NR			129		141,915
PR Corp Sales Tax		4.75%	7/1/2053	NR			3,940		4,339,752
PR Corp Sales Tax		4.784%	7/1/2058	NR			1,067		1,175,770
PR Corp Sales Tax		5.00%	7/1/2058	NR			23,033		25,725,558
Reno Cap Impt (AGM)		4.00%	6/1/2043	AA			4,725		5,296,347
Reno Cap Impt (AGM)		4.00%	6/1/2046	AA			6,800		7,578,736
San Jose Spl Tax - Conv Ctr		5.50%	5/1/2026	A+			275		277,987
San Jose Spl Tax - Conv Ctr		6.125%	5/1/2031	A+			4,190		4,231,271
San Jose Spl Tax - Conv Ctr		6.50%	5/1/2036	A+			530		534,881
Sonoma Marin Area Rail		5.00%	3/1/2028	AA			510		538,790
VA Small Bus Fin - NTL Senior Lvg		4.00%	1/1/2045	A	(d)		4,000		4,454,360
VT Edu Loan Rev AMT		3.375%	6/15/2036	A			4,425		4,612,133
Yorba Linda Redev Agy		6.00%	9/1/2026	NR			1,145		1,188,556
Yorba Linda Redev Agy		6.50%	9/1/2032	NR			2,250		2,342,340
Total									188,560,803
Tobacco 4.68%
Buckeye Tobacco		Zero Coupon	6/1/2057	NR			19,000		2,895,220
Buckeye Tobacco		5.00%	6/1/2055	NR			39,000		44,153,850
Golden St Tobacco		5.00%	6/1/2029	BBB			2,500		3,079,025
Golden St Tobacco		5.00%	6/1/2030	Aa3			500		550,830

66 See Notes to Schedule of Investments.

Schedule of Investments (unaudited)(continued)

NATIONAL TAX FREE FUND December 31, 2020

Investments	Interest Rate		Maturity Date	Credit Rating: S&P or Moody’s	Principal Amount (000)		Fair Value
Tobacco (continued)
Golden St Tobacco		5.00%	6/1/2047	NR	$	7,500	$	7,780,650
Golden St Tobacco		5.00%	6/1/2047	NR		8,130		8,434,225
Golden St Tobacco		5.25%	6/1/2047	NR		4,375		4,557,175
Los Angeles Co Tobacco		Zero Coupon	6/1/2055	NR		9,000		1,692,180
Los Angeles Co Tobacco		4.00%	6/1/2049	BBB+		6,770		7,868,839
Los Angeles Co Tobacco		5.00%	6/1/2049	BBB-		250		306,770
MI Tob Settlement		Zero Coupon	6/1/2058	NR		25,000		1,096,750
MI Tob Settlement		4.00%	6/1/2049	BBB+		3,365		3,823,212
MI Tob Settlement		5.00%	6/1/2049	BBB-		4,000		4,864,720
Nassau Co Tobacco		Zero Coupon	6/1/2060	NR		20,000		988,800
Nthrn CA Tobacco		5.50%	6/1/2045	B-		3,000		3,014,190
PA Tob Settlement (AGM)		4.00%	6/1/2039	AA		15,000		17,300,250
Railsplitter Tobacco Settlement Auth		5.00%	6/1/2027	A		3,325		4,053,341
Railsplitter Tobacco Settlement Auth		6.00%	6/1/2028	NR		5,625		5,758,594
San Diego Co Tobacco		5.00%	6/1/2048	BBB+		1,500		1,875,105
San Diego Co Tobacco		5.00%	6/1/2048	BBB-		9,700		11,797,043
Suffolk Tobacco Asset Sec Corp		5.375%	6/1/2028	NR		5,895		5,896,886
Tobacco Settlement Auth IA		5.50%	6/1/2042	B-		205		207,778
Tobacco Settlement Auth WA		5.25%	6/1/2032	A-		2,000		2,042,980
Tobacco Settlement Fin Corp LA		5.25%	5/15/2035	A-		2,310		2,519,194
Tobacco Settlement Fin Corp NJ		3.20%	6/1/2027	BBB		1,535		1,577,811
Tobacco Settlement Fin Corp NJ		5.00%	6/1/2031	A-		4,605		5,882,335
Tobacco Settlement Fin Corp NJ		5.00%	6/1/2033	A-		1,000		1,262,190
Tobacco Settlement Fin Corp NJ		5.00%	6/1/2046	BB+		3,760		4,391,793
Tobacco Settlement Fin Corp NJ		5.25%	6/1/2046	BBB+		8,900		10,849,278
Tobacco Settlement Fin Corp VA		5.00%	6/1/2047	B-		7,540		7,570,386
TSASC		5.00%	6/1/2023	B-		3,400		3,490,440
TSASC		5.00%	6/1/2035	A-		1,390		1,670,182
TSASC		5.00%	6/1/2048	NR		5,550		5,944,882
Total								189,196,904
Transportation 23.39%
AL Port Auth (AGM)		5.00%	10/1/2036	AA		750		921,105
AL Port Auth AMT (AGM)		5.00%	10/1/2034	AA		2,000		2,425,480
AL Port Auth AMT (AGM)		5.00%	10/1/2035	AA		2,000		2,419,960
Alameda Corridor Trsp Auth (AGM)		5.00%	10/1/2034	AA		3,650		4,349,705
Atlanta Arpt - PFC		5.00%	1/1/2028	Aa3		2,000		2,266,020
Atlanta Arpt - PFC		5.00%	1/1/2031	Aa3		4,000		4,497,720

See Notes to Schedule of Investments. 67

Schedule of Investments (unaudited)(continued)

NATIONAL TAX FREE FUND December 31, 2020

Investments	Interest Rate		Maturity Date	Credit Rating: S&P or Moody’s		Principal Amount (000)		Fair Value
Transportation (continued)
Atlanta Arpt AMT		4.00%	7/1/2039	Aa3		$	2,250	$	2,612,587
Bay Area Toll Auth		4.00%	4/1/2049	AA-			4,860		5,512,455
CA Muni Fin - LINXS (AGM) AMT		4.00%	12/31/2047	AA			3,630		4,028,937
CA Muni Fin - LINXS AMT		4.00%	12/31/2047	BBB-	(d)		14,450		15,789,226
CA Muni Fin Auth - LINXS AMT		5.00%	12/31/2038	BBB-	(d)		5,000		5,976,850
Canaveral FL Port Auth AMT		5.00%	6/1/2045	A3			4,630		5,272,274
Canaveral Port Auth		5.00%	6/1/2048	A3			4,890		5,652,449
Central TX Mobility Auth		5.00%	1/1/2042	BBB+			6,185		6,773,998
Central TX Mobility Auth		5.00%	1/1/2045	A-			4,500		5,137,110
Central TX Tpk		5.00%	8/15/2033	A-			5,750		6,549,135
Central TX Tpk		5.00%	8/15/2037	A-			1,000		1,133,130
Charlotte Arpt		5.00%	7/1/2033	Aa3			575		586,701
Chicago Midway Arpt		4.00%	1/1/2034	A-			1,000		1,095,220
Chicago O’Hare Arpt		4.00%	1/1/2044	A			13,500		15,379,605
Chicago O’Hare Arpt		5.00%	1/1/2048	A			1,020		1,243,370
Chicago O’Hare Arpt - TRIPS AMT		5.00%	7/1/2048	BBB+			2,500		2,893,525
Chicago O’Hare Arpt AMT		5.00%	1/1/2047	A			5,735		6,662,636
Chicago O’Hare Arpt AMT		5.00%	1/1/2048	A			10,000		11,953,700
Chicago O’Hare Arpt AMT		5.00%	1/1/2053	A			10,000		11,892,200
Chicago Trans Auth		4.00%	12/1/2055	A+			3,000		3,371,550
Chicago Trans Auth		5.00%	12/1/2055	A+			1,750		2,106,020
Cleveland Arpt (AGM)		5.00%	1/1/2031	AA			900		1,026,018
CT Airport Auth - Bradley Arpt AMT		4.00%	7/1/2049	BBB			3,600		3,936,960
CT Airport Auth - Ground Trans Proj AMT		5.00%	7/1/2049	BBB			3,425		4,068,831
Delaware River Port Auth		5.00%	1/1/2029	A+			470		528,332
Delaware River Port Auth		5.00%	1/1/2034	A+			8,000		8,937,440
Denver City & Co Arpt		4.00%	12/1/2043	A			5,000		5,706,000
Denver City & Co Arpt AMT		4.00%	12/1/2043	A			2,565		2,871,543
Denver City & Co Arpt AMT		4.00%	12/1/2048	A			4,255		4,721,561
Denver City & Co Arpt AMT		5.25%	11/15/2043	A			8,000		8,776,160
Denver RTD - Eagle P3		4.00%	7/15/2033	Baa2			1,100		1,371,458
Denver RTD - Eagle P3		4.00%	7/15/2035	Baa2			1,250		1,512,725
DFW Arpt		5.00%	11/1/2030	A			850		950,521
E470 Pub Hwy Auth (NPFGC)(FGIC)		Zero Coupon	9/1/2032	A			4,200		3,453,618
E470 Pub Hwy Auth (NPFGC)(FGIC)		Zero Coupon	9/1/2037	A			7,720		4,101,018
Eagle Co Arpt AMT		5.00%	5/1/2033	Baa2			2,430		2,805,994
Eagle Co Arpt AMT		5.00%	5/1/2037	Baa2			1,000		1,147,260
Eagle Co Arpt AMT		5.00%	5/1/2041	Baa2			3,000		3,415,680

68 See Notes to Schedule of Investments.

Schedule of Investments (unaudited)(continued)

NATIONAL TAX FREE FUND December 31, 2020

Investments	Interest Rate			Maturity Date	Credit Rating: S&P or Moody’s	Principal Amount (000)		Fair Value
Transportation (continued)
FL Tpk Auth - Dept Trans		5.00%		7/1/2034	AA	$	500	$	511,245
Foothill / Eastern Corridor Toll Rd		Zero Coupon		1/15/2033	A-		5,000		3,649,000
Foothill / Eastern Corridor Toll Rd		3.50%	#(a)	1/15/2053	A-		12,500		13,680,750
Foothill / Eastern Corridor Toll Rd		5.75%		1/15/2046	A-		5,375		6,047,896
Foothill / Eastern Corridor Toll Rd		6.00%		1/15/2049	A-		9,000		10,571,940
Foothill / Eastern Corridor Toll Rd		6.00%		1/15/2053	A-		8,000		9,397,280
Foothill / Eastern Corridor Toll Rd		6.25%		1/15/2033	BBB+		6,500		7,448,870
Hampton Rds Trans		5.25%		7/1/2060	AA		20,000		26,249,600
Hampton Roads Trans Commn		5.50%		7/1/2057	AA		7,500		9,441,150
Harris Co Toll Rd (The)		4.00%		8/15/2048	Aa1		500		581,830
HI Airport Sys AMT		5.00%		7/1/2041	A+		5,000		5,724,450
HI Airport Sys AMT		5.00%		7/1/2048	A+		11,905		14,389,335
HI Arprt AMT		4.00%		7/1/2035	A+		4,425		5,229,022
Houston Arpt - Continental Airlines AMT		6.625%		7/15/2038	Ba3		2,500		2,596,450
Houston Arpt AMT		4.00%		7/1/2047	A1		3,750		4,290,900
Kansas City IDA - Kansas City Arpt AMT		4.00%		3/1/2036	A2		3,000		3,480,960
Kansas City IDA - Kansas City Intl Airport AMT		5.00%		3/1/2054	A2		23,835		28,543,604
Lee Co Arpt AMT		5.375%		10/1/2032	A2		3,695		3,782,165
Los Angeles Dept Arpts - LAX AMT		4.00%		5/15/2050	Aa2		8,250		9,634,762
Los Angeles Dept Arpts - LAX AMT		5.00%		5/15/2041	Aa2		4,000		4,607,680
MA Port Auth AMT		4.00%		7/1/2046	Aa2		5,465		6,011,883
MA Port Auth AMT		5.00%		7/1/2040	Aa2		1,500		1,730,340
MA Port Auth AMT		5.00%		7/1/2045	Aa2		3,315		3,794,051
MD EDC - Ports America Chesapeake AMT		5.00%		6/1/2044	Baa3		375		422,756
MD EDC - Ports America Chesapeake AMT		5.00%		6/1/2049	Baa3		750		840,323
MD Trans - Baltimore Intl Arpt AMT		3.00%		6/1/2036	A		7,310		7,647,503
Met Airpt Auth - Dulles Metrorail		4.00%		10/1/2053	A-		5,115		5,734,222
Met DC Arpt AMT		5.00%		10/1/2027	Aa3		3,250		3,739,125
Met DC Arpt AMT		5.00%		10/1/2028	Aa3		2,000		2,215,320
Met DC Arpt AMT		5.00%		10/1/2035	Aa3		4,525		5,436,878
Met Nashville Arpt		5.00%		7/1/2054	A2		2,390		3,004,636
Met Nashville Arpt Auth		4.00%		7/1/2049	A2		19,400		22,098,152
Met Nashville Arpt Auth AMT		4.00%		7/1/2054	A2		3,000		3,399,810
Met Nashville Arpt Auth AMT		5.00%		7/1/2049	A2		5,000		6,209,600
MI Strategic Fund - I-75 AMT		5.00%		6/30/2048	Baa2		2,500		3,016,950
Miami Dade Co - Rickenbacker Cswy		5.00%		10/1/2029	A-		500		561,875
Miami Dade Co - Rickenbacker Cswy		5.00%		10/1/2030	A-		550		616,121

See Notes to Schedule of Investments. 69

Schedule of Investments (unaudited)(continued)

NATIONAL TAX FREE FUND December 31, 2020

Investments	Interest Rate			Maturity Date	Credit Rating: S&P or Moody’s		Principal Amount (000)		Fair Value
Transportation (continued)
Miami Dade Co - Rickenbacker Cswy		5.00%		10/1/2032	A-		$	1,160	$	1,293,040
Miami Dade Co Aviation - Mia AMT		4.00%		10/1/2044	A-			1,950		2,196,304
Miami Dade Co Aviation - MIA AMT		5.00%		10/1/2028	A2			4,435		5,088,320
Miami Dade Co Aviation - MIA AMT		5.00%		10/1/2029	A2			2,500		2,864,300
Miami Dade Co Aviation - Mia AMT		5.00%		10/1/2034	A2			10,000		11,335,100
Miami Dade Co Expwy Auth		5.00%		7/1/2027	A			160		182,274
Miami Dade Co Expwy Auth		5.00%		7/1/2028	A			515		585,931
Mid Bay Bridge Auth		7.25%		10/1/2034	AAApre	(d)		5,900		6,207,390
Minneapolis / St Paul Met Arpts		5.00%		1/1/2027	A			575		645,817
Minneapolis / St Paul Met Arpts		5.00%		1/1/2031	A			2,000		2,241,900
MTA NY		4.00%		2/1/2022	NR			5,000		5,102,700
MTA NY		4.00%		11/15/2045	A3			2,500		2,777,375
MTA NY		5.00%		11/15/2035	A3			4,265		4,860,309
MTA NY		5.00%	#(a)	11/15/2045	A3			2,700		3,282,822
MTA NY		5.00%		11/15/2050	A3			11,125		13,279,467
MTA NY		5.25%		11/15/2044	A3			9,680		10,744,994
MTA NY		5.25%		11/15/2055	A3			13,000		15,869,880
NC Tpk Auth - Triangle Exprs		5.00%		1/1/2032	BBB			1,350		1,618,879
NC Tpk Auth - Triangle Exprs		5.00%		1/1/2043	BBB			1,150		1,423,171
NC Tpk Auth - Triangle Exprs (AGM)		4.00%		1/1/2037	AA			14,255		16,662,955
NC Tpk Auth - Triangle Exprs (AGM)		4.00%		1/1/2038	AA			1,000		1,165,970
NC Tpk Auth - Triangle Exprs (AGM)		4.00%		1/1/2055	AA			4,000		4,572,160
Niagara Frontier Trsp - Buffalo Intl Arpt AMT		5.00%		4/1/2025	A3			2,750		3,096,610
Niagara Frontier Trsp - Buffalo Intl Arpt AMT		5.00%		4/1/2026	A3			1,000		1,123,990
NJ EDA - Transit		4.00%		11/1/2044	Baa1			4,715		5,229,076
NJ Tpk Auth		4.00%		1/1/2033	A+			1,630		1,909,578
NJ Tpk Auth		4.00%		1/1/2043	A+			5,555		6,355,031
NJ Trans Trust Fund		4.00%		6/15/2045	Baa1			3,300		3,693,525
NJ Trans Trust Fund		4.00%		6/15/2050	Baa1			7,690		8,538,976
NJ Trans Trust Fund		5.00%		6/15/2045	Baa1			5,000		6,092,050
NJ Trans Trust Fund		5.00%		6/15/2050	Baa1			2,750		3,324,337
North TX Twy Auth		5.00%		1/1/2031	A			250		282,138
North TX Twy Auth		5.00%		1/1/2040	A+			4,350		4,660,764
North TX Twy Auth		5.00%		1/1/2048	A			5,000		5,988,950
NY Trans Dev Corp - Delta AMT		4.00%		10/1/2030	Baa3			6,500		7,452,510
NY Trans Dev Corp - Delta AMT		4.00%		1/1/2036	Baa3			3,295		3,611,551

70 See Notes to Schedule of Investments.

Schedule of Investments (unaudited)(continued)

NATIONAL TAX FREE FUND December 31, 2020

Investments	Interest Rate		Maturity Date	Credit Rating: S&P or Moody’s	Principal Amount (000)		Fair Value
Transportation (continued)
NY Trans Dev Corp - Delta AMT		4.375%	10/1/2045	Baa3	$	6,000	$	6,905,340
NY Trans Dev Corp - Delta AMT		5.00%	1/1/2029	Baa3		2,100		2,538,585
NY Trans Dev Corp - Delta AMT		5.00%	1/1/2030	Baa3		3,275		3,934,683
NY Trans Dev Corp - Delta AMT		5.00%	1/1/2033	Baa3		12,450		14,691,622
NY Trans Dev Corp - Delta AMT		5.00%	1/1/2034	Baa3		3,855		4,535,022
NY Trans Dev Corp - Delta AMT		5.00%	1/1/2036	Baa3		2,250		2,635,965
NY Trans Dev Corp - Delta AMT		5.00%	10/1/2040	Baa3		6,000		7,353,240
NY Trans Dev Corp - JFK IAT		4.00%	12/1/2039	Baa1		1,000		1,185,470
NY Trans Dev Corp - JFK IAT		4.00%	12/1/2041	Baa1		1,000		1,171,500
NY Trans Dev Corp - JFK IAT		5.00%	12/1/2035	Baa1		1,000		1,289,420
NY Trans Dev Corp - JFK IAT		5.00%	12/1/2037	Baa1		1,500		1,924,200
NY Trans Dev Corp - JFK IAT AMT		5.00%	12/1/2025	Baa1		1,100		1,301,641
NY Trans Dev Corp - JFK IAT AMT		5.00%	12/1/2035	Baa1		1,250		1,576,825
NY Trans Dev Corp - JFK IAT AMT		5.00%	12/1/2037	Baa1		1,000		1,257,050
NY Trans Dev Corp - LaGuardia Airport AMT		4.00%	7/1/2041	Baa3		2,330		2,449,599
NY Trans Dev Corp - LaGuardia Airport AMT		4.00%	7/1/2046	Baa3		1,340		1,400,715
NY Trans Dev Corp - LaGuardia Airport AMT		5.00%	7/1/2046	Baa3		7,315		8,006,341
NY Trans Dev Corp - LaGuardia Airport AMT		5.25%	1/1/2050	Baa3		19,605		21,584,909
NY Twy Auth (AGM)		4.00%	1/1/2051	AA		2,725		3,006,438
Orlando & Orange Co Expwy Auth		4.00%	7/1/2035	A+		5,000		5,693,500
Osceola Co Trans - Osceola Parkway		5.00%	10/1/2039	BBB+		1,000		1,226,820
Osceola Parkway		4.00%	10/1/2054	BBB+		9,300		10,235,487
PA Tpk Commn		4.00%	12/1/2038	A3		3,425		3,839,699
PA Tpk Commn		5.00%	6/1/2029	A3		9,000		10,769,760
PA Tpk Commn		5.00%	12/1/2039	A+		750		859,238
PA Tpk Commn		5.00%	12/1/2044	A3		2,500		3,102,900
Philadelphia Airport AMT		5.00%	7/1/2042	A2		4,440		5,294,878
Phoenix Arpt AMT		4.00%	7/1/2037	A1		8,000		9,239,840
Phoenix Arpt AMT		4.00%	7/1/2038	A1		5,960		6,865,503
Phoenix Arpt AMT		4.00%	7/1/2044	A1		2,000		2,267,600
Port Auth NY & NJ		4.00%	9/1/2043	Aa3		2,000		2,310,540
Port Auth NY & NJ		5.25%	10/15/2055	Aa3		3,675		4,275,899
Port Auth NY & NJ - JFK IAT		6.00%	12/1/2036	Baa1		5,000		5,007,300
Port Auth NY & NJ - JFK IAT CR (AGM)		6.00%	12/1/2042	NR		1,875		1,877,756

See Notes to Schedule of Investments. 71

Schedule of Investments (unaudited)(continued)

NATIONAL TAX FREE FUND December 31, 2020

Investments	Interest Rate		Maturity Date	Credit Rating: S&P or Moody’s	Principal Amount (000)		Fair Value
Transportation (continued)
Port Auth NY & NJ AMT		4.00%	7/15/2055	Aa3	$	5,000	$	5,746,550
Port Auth NY & NJ AMT		4.00%	11/1/2059	Aa3		3,030		3,450,867
Port Auth NY & NJ AMT		4.00%	7/15/2060	Aa3		10,200		11,718,678
Port of Portland - Portland Intl Arpt AMT		5.00%	7/1/2039	A+		2,000		2,225,880
PR Hwy & Trans Auth(b)		4.00%	7/1/2017	NR		240		84,000
PR Hwy & Trans Auth (AGM)		5.25%	7/1/2032	AA		2,000		2,384,980
PR Hwy & Trans Auth (AGM)		5.50%	7/1/2025	AA		2,000		2,313,700
Sacramento Co Arpt		5.00%	7/1/2041	A-		8,000		9,490,560
Salt Lake City Arpt AMT		5.00%	7/1/2034	A		5,000		6,038,400
San Antonio Arpt AMT		5.00%	7/1/2045	A1		8,435		9,551,541
San Diego Arpt AMT		4.00%	7/1/2044	A-		800		910,352
San Francisco Arpt AMT		4.00%	5/1/2049	A1		1,500		1,703,955
San Francisco Arpt AMT		5.00%	5/1/2025	A1		5,000		5,073,650
San Francisco Arpt AMT		5.00%	5/1/2050	A1		8,150		10,000,376
San Francisco Arpt AMT		5.25%	5/1/2033	A1		7,000		7,704,130
San Joaquin Hills Trsp Corridor		5.00%	1/15/2050	A-		11,250		12,473,325
San Jose Arpt		5.00%	3/1/2047	A2		750		887,625
San Jose Arpt AMT		5.00%	3/1/2047	A2		2,800		3,276,476
San Jose Arpt AMT		6.25%	3/1/2034	A2		5,000		5,040,600
SC St Port Auth AMT		5.00%	7/1/2044	A+		5,000		6,201,450
Triborough Brdg & Tunl Auth		4.00%	11/15/2054	AA-		8,500		9,970,075
Triborough Brdg & Tunl Auth		5.00%	11/15/2042	AA-		1,640		2,028,172
Triborough Brdg & Tunl Auth		5.00%	11/15/2054	AA-		6,800		8,727,188
TX Surface Trans Corp - I-635		4.00%	6/30/2037	Baa2		2,100		2,489,991
TX Surface Trans Corp - I-635		4.00%	12/31/2037	Baa2		2,125		2,513,705
TX Surface Trans Corp - I-635		4.00%	6/30/2038	Baa2		1,050		1,239,126
TX Surface Trans Corp - I-635		4.00%	12/31/2038	Baa2		1,375		1,618,856
TX Surface Trans Corp - I-635		4.00%	6/30/2039	Baa2		1,340		1,575,920
TX Surface Trans Corp - I-635		4.00%	12/31/2039	Baa2		1,025		1,204,150
TX Surface Trans Corp - I-635		4.00%	6/30/2040	Baa2		1,125		1,318,489
TX Surface Trans Corp - NTE 3C AMT		5.00%	6/30/2058	Baa3		5,185		6,223,089
TX Trans Comm - Hwy 249		5.00%	8/1/2057	Baa3		2,625		3,061,354
VA Small Bus Fing - Elizabeth River AMT		5.25%	1/1/2032	BBB-		6,100		6,416,041
VA Small Bus Fing - Elizabeth River AMT		6.00%	1/1/2037	BBB-		1,230		1,311,377
Wayne Co Arpt AMT		5.00%	12/1/2039	A1		1,700		1,916,359
Wayne Co Arpt AMT		5.00%	12/1/2042	A1		1,200		1,409,556
WV Parkways Auth		4.00%	6/1/2047	AA-		5,235		5,972,454
Total								946,420,647

72 See Notes to Schedule of Investments.

Schedule of Investments (unaudited)(continued)

NATIONAL TAX FREE FUND December 31, 2020

Investments	Interest Rate		Maturity Date	Credit Rating: S&P or Moody’s	Principal Amount (000)		Fair Value
Utilities 10.13%
Adelanto Util Sys (AGM)		5.00%	7/1/2039	AA	$	1,500	$	1,842,975
Baltimore Wastewater		5.00%	7/1/2039	AA-		4,750		5,494,657
Baltimore Water		4.00%	7/1/2049	Aa2		5,850		6,931,840
Baltimore Water		5.00%	7/1/2032	Aa3		2,435		2,826,183
Baltimore Water		5.00%	7/1/2046	Aa3		10,000		11,945,500
Burke Co Dev - Oglethorpe Power		4.125%	11/1/2045	BBB+		3,095		3,518,303
Burke Co Dev - Oglethorpe Power		4.125%	11/1/2045	BBB+		3,550		4,035,533
CA Poll Ctl - Poseidon Res†		5.00%	7/1/2039	Baa3		2,200		2,649,042
CA Poll Ctl - Poseidon Res†		5.00%	11/21/2045	Baa3		2,750		3,266,973
Campbell Co Solid Wste - Basin Elec		3.625%	7/15/2039	A		11,270		12,369,501
Casitas Muni Water Dist (BAM)		5.25%	9/1/2047	AA		500		608,705
Central Plains - Goldman Sachs		5.00%	9/1/2032	A3		5,525		5,913,407
Central Plains - Goldman Sachs		5.00%	9/1/2042	BBB+		11,040		16,185,082
Central Plains - Goldman Sachs		5.25%	9/1/2037	A3		9,025		9,696,550
Chicago Water		5.00%	11/1/2029	A		4,560		5,716,690
Chicago Water		5.00%	11/1/2036	A		1,775		2,167,453
Chicago Water		5.00%	11/1/2039	A		3,455		3,884,526
Chicago Water (AGM)		5.00%	11/1/2036	AA		3,000		3,635,190
Chicago Water (AGM)		5.00%	11/1/2037	AA		2,500		3,022,525
CO Public Auth - ML		6.50%	11/15/2038	A2		4,465		7,102,654
Compton Water		6.00%	8/1/2039	NR		5,500		5,518,810
Detroit Sewer		5.00%	7/1/2034	A+		1,980		2,311,729
El Dorado Irrigation Dist (AGM)		5.00%	3/1/2034	AA		4,000		4,607,760
GA Muni Elec Auth - MEAG		4.00%	1/1/2049	BBB+		5,000		5,630,700
GA Muni Elec Auth - MEAG		5.00%	1/1/2033	A2		1,910		2,189,949
GA Muni Elec Auth - MEAG		5.00%	1/1/2048	BBB+		5,000		6,054,650
GA Muni Elec Auth - MEAG		5.00%	1/1/2056	A		3,810		4,591,126
GA Muni Elec Auth - MEAG		5.00%	1/1/2059	BBB+		2,000		2,391,620
Guam Waterworks Auth		5.00%	1/1/2050	A-		2,250		2,796,593
HI Dept Budget - Hawaiian Electric		3.20%	7/1/2039	Baa2		18,865		19,747,693
HI Dept Budget - Hawaiian Electric AMT		3.10%	5/1/2026	Baa2		6,235		6,669,018
IN Fin Auth - OVEC		5.00%	6/1/2039	Ba1		2,315		2,402,854
Jefferson Co Sewer		Zero Coupon	10/1/2039	BBB		350		356,633
Jefferson Co Sewer		6.00%	10/1/2042	BBB		5,000		5,831,150
Jefferson Co Sewer		6.50%	10/1/2053	BBB		7,700		9,072,602
Jefferson Co Sewer (AGM)		Zero Coupon	10/1/2026	AA		1,000		854,240
Jefferson Co Sewer (AGM)		Zero Coupon	10/1/2027	AA		4,875		3,900,488
Jefferson Co Sewer (AGM)		5.50%	10/1/2053	AA		3,555		3,968,269

See Notes to Schedule of Investments. 73

Schedule of Investments (unaudited)(continued)

NATIONAL TAX FREE FUND December 31, 2020

Investments	Interest Rate			Maturity Date	Credit Rating: S&P or Moody’s		Principal Amount (000)		Fair Value
Utilities (continued)
KY Muni Pwr Auth (NPFGC)(FGIC)		5.00%		9/1/2035	Baa1		$	5,000	$	5,875,400
KY Muni Pwr Auth (NPFGC)(FGIC)		5.00%		9/1/2036	Baa1			5,000		5,879,600
Long Beach Nat Gas - ML		5.50%		11/15/2037	A2			8,950		13,481,832
Louisville/Jeff Co Met Swr Dist		5.00%		5/15/2028	AA			9,710		10,095,293
Lower AL Gas Dist - Goldman Sachs		5.00%		9/1/2031	A3			1,600		2,133,264
Lower Colo Riv Auth - Transmn Contract		5.00%		5/15/2040	A			2,970		3,429,400
Main St Nat Gas - Citibank		4.00%	#(a)	3/1/2050	A3			2,725		3,201,766
Main St Nat Gas - Macquarie		5.00%		5/15/2035	A3			2,000		2,778,220
Maricopa Co Poll Cntrl - El Paso Elec		3.60%		2/1/2040	Baa2			5,085		5,641,452
Maricopa Co Poll Cntrl - El Paso Elec		3.60%		4/1/2040	Baa2			3,445		3,820,298
New Orleans Water		5.00%		12/1/2034	A-			1,000		1,149,340
Norfolk Water		5.25%		11/1/2028	AA+			1,000		1,234,920
North Sumter Co Util Dep Dist		5.00%		10/1/2032	A-			5,400		5,643,864
NYC Muni Water		5.00%		6/15/2036	AA+			500		574,615
Omaha Pub Pwr Dist		5.25%		2/1/2042	A+			4,000		4,669,240
Paducah Electric (AGM)		5.00%		10/1/2033	AA			1,000		1,193,400
Paducah Electric (AGM)		5.00%		10/1/2034	AA			1,000		1,191,700
Paducah Electric (AGM)		5.00%		10/1/2035	AA			1,000		1,190,550
Philadelphia Gas Works		5.00%		8/1/2029	A			2,000		2,353,680
Philadelphia Gas Works		5.00%		8/1/2030	A			1,500		1,760,115
Philadelphia Water & Wastewater		5.00%		7/1/2030	A+			3,355		3,973,628
Philadelphia Water & Wastewater		5.25%		10/1/2052	A+			6,610		8,111,131
PR Aqueduct & Swr Auth		5.25%		7/1/2042	Ca			3,240		3,414,150
PR Aqueduct & Swr Auth		5.75%		7/1/2037	Ca			3,080		3,276,350
PR Elec Pwr Auth(b)		0.851% (3 Mo. LIBOR * .67 + .70%)	#	7/1/2031	D	(d)		4,000		3,010,000
PR Elec Pwr Auth(b)		5.00%		7/1/2028	D	(d)		270		218,700
PR Elec Pwr Auth(b)		5.25%		7/1/2028	D	(d)		880		715,000
PR Elec Pwr Auth (AGC)		4.25%		7/1/2027	AA			280		280,412
Prichard Wtr & Swr		4.00%		11/1/2044	BBB+			1,530		1,714,120
Prichard Wtr & Swr		4.00%		11/1/2049	BBB+			3,890		4,319,300
Salt Verde Fin Corp - Citi		5.00%		12/1/2032	A3			5,565		7,488,987
Salt Verde Fin Corp - Citi		5.00%		12/1/2037	A3			15,995		22,847,738
Salt Verde Fin Corp - Citi		5.25%		12/1/2027	A3			3,750		4,741,875
SC Pub Service Auth - Santee Cooper		4.00%		12/1/2042	A			5,000		5,902,050

74 See Notes to Schedule of Investments.

Schedule of Investments (unaudited)(continued)

NATIONAL TAX FREE FUND December 31, 2020

Investments

Interest Rate

Maturity Date

Credit Rating: S&P or Moody’s

Principal Amount (000)

Fair Value

Utilities (continued)

Southern CA Pub Pwr Auth - Goldman Sachs

1.614% (3 Mo. LIBOR * ..67 + 1.47%)

#

11/1/2038

A3

$

3,090

$

2,844,530

Southern CA Pub Pwr Auth - Goldman Sachs

5.00%

11/1/2033

A3

1,850

2,548,801

TEAC - Goldman Sachs

5.625%

9/1/2026

BBB

(d)

10,550

13,015,535

Texas Water Dev Brd

4.00%

10/15/2037

AAA

7,760

9,493,972

Transbay Pwr Auth

5.00%

10/1/2045

A-

(d)

1,000

1,250,400

Transbay Pwr Auth

5.00%

10/1/2049

A-

(d)

1,100

1,367,575

Trimble Env Facs - Louisville Gas & Elec

3.75%

6/1/2033

A1

12,500

13,907,875

TX Muni Gas Acq & Supply - Macquarie

5.00%

12/15/2025

A3

950

1,029,582

TX Muni Gas Acq & Supply - Macquarie

5.00%

12/15/2028

A3

4,445

4,784,109

TX Muni Gas Acq & Supply - Macquarie

5.00%

12/15/2029

A3

9,965

10,700,716

Total

409,963,658

Total Municipal Bonds (cost $3,669,967,529)

3,970,219,567

Interest

Final

Interest

Rate Reset

Maturity

Rate#

Date(e)

Date

SHORT-TERM INVESTMENTS 0.26%

Variable Rate Demand Notes 0.26%

Health Care 0.05%

NYC Muni Water

0.10%

1/4/2021

6/15/2045

AAA

2,100

2,100,000

Tax Revenue 0.01%

NYC TFA - Future Tax

0.10%

1/4/2021

2/1/2045

AAA

300

300,000

Transportation 0.01%

Triborough Brdg & Tunl Auth

0.11%

1/4/2021

1/1/2032

Aa1

390

390,000

Utilities 0.19%

Appling Co Dev - GA Power

0.14%

1/4/2021

9/1/2041

A-

6,200

6,200,000

NYC Muni Water

0.11%

1/4/2021

6/15/2049

AA+

1,425

1,425,000

Total

7,625,000

Total Short-Term Investments (cost $10,415,000)

10,415,000

Total Investments in Securities 98.39% (cost $3,680,382,529)

3,980,634,567

Cash and Other Assets in Excess of Liabilities 1.61%

65,191,785

Net Assets 100.00%

$

4,045,826,352

See Notes to Schedule of Investments. 75

Schedule of Investments (unaudited)(concluded)

NATIONAL TAX FREE FUND December 31, 2020

AGC	Insured by - Assured Guarantee Corporation.
AGM	Insured by - Assured Guaranty Municipal Corporation.
AMBAC	Insured by - AMBAC Assurance Corporation.
AMT	Income from the security may be subject to Alternative Minimum Tax.
BAM	Insured by - Build America Mutual.
COP	Certificates of Participation.
FGIC	Insured by - Financial Guaranty Insurance Company.
GTD	Guaranteed.
LIBOR	London Interbank Offered Rate.
NPFGC	Insured by - National Public Finance Guarantee Corporation.
NR	Not Rated.
SIFMA	Insured by - Securities Industry and Financial Markets Association.
TCRS	Transferable Custodial Receipt.
TRIPS	Tax Refund Intercept Programs

†	Security was purchased pursuant to Rule 144A under the Securities Act of 1933 and, unless registered under such Act or exempted from registration, may only be resold to qualified institutional buyers. At December 31, 2020, the total value of Rule 144A securities was $132,984,006, which represents 3.29% of net assets.
#	Variable rate security. The interest rate represents the rate in effect at December 31, 2020.
~	Deferred interest debentures pay no interest for a stipulated number of years, after which they pay a predetermined interest rate.
(a)	Variable Rate is Fixed to Float: Rate remains fixed or at Zero Coupon until designated future date.
(b)	Defaulted (non-income producing security).
(c)	Level 3 Investment as described in Note 2(b) in the Notes to Financials. Security valued utilizing third party pricing information without adjustment. Such valuations are based on unobservable inputs. A significant change in third party information could result in a significantly lower or higher value of such Level 3 investments.
(d)	This investment has been rated by Fitch IBCA.
(e)	The interest rate reset date shown represents the date in which the Fund has the right to sell a Variable Rate Demand Note (“VRDN”) back to the issuer for Principal Amount. The interest rate on the VRDN is generally reset daily based on the SIFMA Municipal Swap Index.

The following is a summary of the inputs used as of December 31, 2020 in valuing the Fund’s investments carried at fair value⁽¹⁾:

Investment Type(2)	Level 1		Level 2		Level 3		Total
Long-Term Investments
Municipal Bonds
Corporate-Backed	$	-	$	299,563,995	$	4,237,000	$	303,800,995
Special Tax		-		63,056,941		214		63,057,155
Remaining Industries		-		3,603,361,417		-		3,603,361,417
Short-Term Investments
Variable Rate Demand Notes		-		10,415,000		-		10,415,000
Total	$	-	$	3,976,397,353	$	4,237,214	$	3,980,634,567

(1)	Refer to Note 2(b) for a description of fair value measurements and the three-tier hierarchy of inputs.
(2)	See Schedule of Investments for fair values in each industry. The table above is presented by Investment Type. Industries are presented within an Investment Type should such Investment Type include securities classified as two or more levels within the three-tier fair value hierarchy. Each Level 3 security is identified on the Schedule of Investments along with the valuation technique utilized.

A reconciliation of Level 3 investments is presented when the Fund has a material amount of Level 3 investments at the beginning or end of the period in relation to the Fund’s net assets. Management has determined not to provide a reconciliation as the balance of Level 3 investments were not considered to be material to the Fund’s net assets at the beginning or end of the period.

76 See Notes to Schedule of Investments.

Schedule of Investments (unaudited)

HIGH YIELD MUNICIPAL BOND FUND December 31, 2020

Investments	Interest Rate		Maturity Date	Credit Rating: S&P or Moody’s	Principal Amount (000)		Fair Value
MUNICIPAL BONDS 98.28%
Corporate-Backed 14.53%
AR DFA - Big River Steel AMT†	4.50%		9/1/2049	B	$	40,000	$	43,149,200
AR DFA - Big River Steel AMT†	4.75%		9/1/2049	B		21,500		23,675,800
Beauregard Parish - Office Max	6.80%		2/1/2027	B1		5,000		5,001,150
Build NYC Res Corp - Pratt Paper AMT†	5.00%		1/1/2035	NR		1,450		1,611,269
Downtown Doral CDD†	4.75%		12/15/2038	NR		625		720,181
Downtown Doral CDD†	5.00%		12/15/2048	NR		1,500		1,721,835
Fort Bend IDC - NRG Energy	4.75%		11/1/2042	Baa2		3,590		3,791,435
Greater Orlando Aviation - Jet Blue AMT	5.00%		11/15/2036	NR		2,000		2,072,220
Hoover IDA - US Steel AMT	5.75%		10/1/2049	B-		17,200		16,859,956
Houston Arpt - United Airlines AMT	5.00%		7/1/2029	Ba3		13,025		13,841,277
IA Fin Auth - Alcoa	4.75%		8/1/2042	BB+		10,225		10,567,742
IA Fin Auth - Iowa Fertilizer Co	5.25%		12/1/2025	BB-		31,410		34,278,047
IL Fin Auth - Navistar†	4.75%	#(a)	10/15/2040	B3		26,000		27,772,160
IN Fin Auth - OH River Brdgs AMT	5.25%		1/1/2051	BBB+		1,895		2,029,261
IN Fin Auth - US Steel AMT	6.75%		5/1/2039	B-		3,500		3,801,385
LA St John Parish - Marathon Oil	2.20%	#(a)	6/1/2037	BBB-		1,000		1,033,010
Love Field Arpt - Southwest Airlines	5.25%		11/1/2040	Baa1		3,300		3,313,200
MD EDC - Chesapeake Bay Hyatt(b)	5.00%		12/1/2016	NR		3,430		2,058,000	(c)
Mission Econ Dev Corp - Natgasoline AMT†	4.625%		10/1/2031	BB-		5,000		5,316,800
NH National Fin Auth - Covanta†	3.625%	#(a)	7/1/2043	B1		1,785		1,807,527
NH National Fin Auth - Covanta AMT†	3.75%	#(a)	7/1/2045	B1		3,290		3,333,724
NH National Fin Auth - Covanta AMT†	4.00%		11/1/2027	B1		1,250		1,299,225
NH National Fin Auth - Covanta AMT†	4.875%		11/1/2042	B1		12,000		12,445,080
NH National Fin Auth - Hsg Sec	4.125%		1/20/2034	NR		4,939		5,550,998
Niagara Area Dev Corp - Covanta†	3.50%		11/1/2024	B1		2,500		2,576,200
Niagara Area Dev Corp - Covanta AMT†	4.75%		11/1/2042	B1		7,500		7,755,975
NJ EDA - Continental Airlines AMT	5.25%		9/15/2029	Ba3		5,960		6,309,554
NJ EDA - Continental Airlines AMT	5.50%		6/1/2033	Ba3		6,760		7,219,883
NY Env Facs - Casella Waste AMT†	3.125%	#(a)	12/1/2044	B		2,000		2,102,120
NY Liberty Dev Corp - 3 WTC†	5.00%		11/15/2044	NR		34,975		37,704,799
NY Liberty Dev Corp - 3 WTC†	5.15%		11/15/2034	NR		3,475		3,754,564
NY Trans Dev Corp - American Airlines AMT	5.00%		8/1/2026	B-		3,100		3,150,995
NY Trans Dev Corp - American Airlines AMT	5.00%		8/1/2031	B-		21,480		21,795,541
NY Trans Dev Corp - American Airlines AMT	5.25%		8/1/2031	B-		2,790		3,157,471
NY Trans Dev Corp - American Airlines AMT	5.375%		8/1/2036	B-		4,000		4,549,640

See Notes to Schedule of Investments. 77

Schedule of Investments (unaudited)(continued)

HIGH YIELD MUNICIPAL BOND FUND December 31, 2020

Investments	Interest Rate		Maturity Date	Credit Rating: S&P or Moody’s	Principal Amount (000)		Fair Value
Corporate-Backed (continued)
NYC IDA - TRIPS AMT	5.00%		7/1/2028	BBB+	$	6,135	$	6,435,001
OH Air Dev Auth - OVEC	3.25%		9/1/2029	Ba1		8,500		9,270,185
OH Air Quality - AMG Vanadium AMT†	5.00%		7/1/2049	B-		34,290		37,774,550
PA EDA - Covanta AMT†	3.25%		8/1/2039	B1		6,980		7,000,940
PA EDA - National Gypsum AMT	5.50%		11/1/2044	NR		1,000		1,042,890
PA EDA - US Airways	8.00%		5/1/2029	B-		2,460		2,470,258
Parish of St James - Nustar Logistics†	5.85%	#(a)	8/1/2041	BB-		1,000		1,117,640
Parish of St James - Nustar Logistics†	6.10%	#(a)	12/1/2040	BB-		1,250		1,542,375
Parish of St James - Nustar Logistics†	6.35%		7/1/2040	BB-		5,000		6,270,350
Parish of St James - Nustar Logistics†	6.35%		10/1/2040	BB-		2,500		3,135,175
Polk Co IDA - Mineral Development AMT†	5.875%		1/1/2033	NR		8,375		8,896,762
Port Beaumont Nav Dis - Jefferson Rail AMT†	3.625%		1/1/2035	NR		6,765		6,828,862
Port Beaumont Nav Dis - Jefferson Rail AMT†	4.00%		1/1/2050	NR		12,590		12,686,943
Rumford Solid Waste - Office Max AMT	6.875%		10/1/2026	B1		1,500		1,500,450
Tuscaloosa IDA - Hunt Refining†	5.25%		5/1/2044	NR		38,665		44,201,828
VA Small Bus Fing - Covanta AMT†	5.00%	#(a)	1/1/2048	B		3,150		3,267,022
Valparaiso Facs - Pratt Paper AMT	5.875%		1/1/2024	NR		640		684,397
Valparaiso Facs - Pratt Paper AMT	7.00%		1/1/2044	NR		4,000		4,527,640
West Pace Coop Dist(b)	9.125%		5/1/2039	NR		13,770		10,465,200	(c)
WI PFA - American Dream†	6.75%		12/1/2042	NR		1,000		889,520
WI PFA - Celanese AMT	4.30%		11/1/2030	BBB-		4,215		4,713,339
WI PFA - Celanese AMT	5.00%		1/1/2024	BBB-		6,750		7,494,525
WI PFA - Celanese AMT	5.00%		12/1/2025	BBB-		1,950		2,290,782
WI PFA - TRIPS AMT	5.00%		7/1/2042	BBB+		11,000		11,448,910
Total								523,082,768
Education 5.77%
AZ IDA - Academy of Math & Science†	5.625%		7/1/2048	BB		2,235		2,521,750
AZ IDA - Academy of Math & Science†	5.75%		7/1/2053	BB		3,000		3,396,450
AZ IDA - American Charter Sch†	5.00%		7/1/2022	BB+		1,280		1,321,946
AZ IDA - Odyssey Prep†	5.00%		7/1/2049	BB-		2,000		2,176,420
AZ IDA - Odyssey Prep†	5.00%		7/1/2054	BB-		5,000		5,425,050
CA Muni Fin - Julian Chtr Sch†	5.625%		3/1/2045	B+		11,500		11,810,960
CA Muni Fin - William Jessup U	5.00%		8/1/2048	NR		8,075		8,289,876
Cap Trust Ed - Advantage Charter Scho	5.00%		12/15/2049	Baa3		1,000		1,093,740
Cap Trust Ed - Advantage Charter Scho	5.00%		12/15/2054	Baa3		705		767,780
Cap Trust Ed - Renaissance Charter†	5.00%		6/15/2039	NR		1,950		2,105,863

78 See Notes to Schedule of Investments.

Schedule of Investments (unaudited)(continued)

HIGH YIELD MUNICIPAL BOND FUND December 31, 2020

Investments	Interest Rate	Maturity Date	Credit Rating: S&P or Moody’s		Principal Amount (000)		Fair Value
Education (continued)
Cap Trust Ed - Renaissance Charter†	5.00%	6/15/2049	NR		$	9,815	$	10,482,714
Clifton Higher Ed - Intl Ldrshp Sch	5.75%	8/15/2045	NR			6,500		7,429,695
Columbus-Franklin Co - Ohio Dominican U	6.50%	3/1/2048	NR			7,000		7,538,090	(c)
Columbus-Franklin Co - Ohio Dominican U	6.50%	3/1/2053	NR			3,000		3,224,730	(c)
Dutchess Co LDC - Anderson Ctr	6.00%	10/1/2030	BB+			1,250		1,252,088
Dutchess Co LDC - Bard College†	5.00%	7/1/2045	BB+			2,000		2,208,120
Dutchess Co LDC - Bard College†	5.00%	7/1/2051	BB+			8,000		8,765,440
Farmville IDA - Longwood Univ Hsg	5.00%	1/1/2059	BBB-			6,000		6,740,580
FL HI Ed - Jacksonville Univ†	5.00%	6/1/2048	NR			6,400		6,726,912
FL HI Ed - Jacksonville Univ†	5.00%	6/1/2053	NR			6,500		6,810,895
Frederick Co Ed - Mount St Mary’s Univ†	5.00%	9/1/2037	BB+			1,500		1,615,875
Frederick Co Ed - Mount St Mary’s Univ†	5.00%	9/1/2045	BB+			12,645		13,426,208
IL Fin Auth - IL Inst of Tech	4.00%	9/1/2041	Baa3			5,490		5,984,320
IL Fin Auth - IL Inst of Tech	5.00%	9/1/2038	Baa3			2,975		3,576,218
IL Fin Auth - IL Inst of Tech	5.00%	9/1/2040	Baa3			1,750		2,091,565
Maricopa Co IDA - Ottawa Univ†	5.25%	10/1/2040	NR			3,000		3,139,470
Maricopa Co IDA - Ottawa Univ†	5.50%	10/1/2051	NR			6,915		7,216,356
Marietta Dev Auth - Life Univ†	5.00%	11/1/2037	Ba3			9,000		9,578,430
Marietta Dev Auth - Life Univ†	5.00%	11/1/2047	Ba3			8,000		8,385,440
Nashville Hlth & Ed - Lipscomb U	5.25%	10/1/2058	BBB			6,400		7,177,920
NV Dept of Bus & Ind - Somerset†	5.00%	12/15/2048	BB			1,500		1,574,895
NY Dorm - Touro Clg	5.25%	1/1/2034	BBB-	(d)		2,955		3,168,351
NYC IDA - Yankee Stadium (AGM)	3.00%	3/1/2049	AA			2,650		2,786,395
NYC IDA - Yankee Stadium (AGM)	4.00%	3/1/2045	AA			2,400		2,809,032
OK DFA - Oklahoma City Univ	5.00%	8/1/2049	BBB-			6,000		6,766,860
Phoenix IDA - Basis Schs†	5.00%	7/1/2045	BB			2,500		2,708,525
Phoenix IDA - Basis Schs†	5.00%	7/1/2047	BB			1,325		1,478,541
Phoenix IDA - Basis Schs†	5.00%	7/1/2051	BB			3,080		3,429,241
Tuscarawas Co Eco Dev - Ashland Univ	6.00%	3/1/2045	NR			5,000		5,318,800
Univ of Illinois (AGM)	4.00%	4/1/2037	AA			5,745		6,642,886
WI PFA - MN Clg of Osteopatic Med†(b)	5.50%	12/1/2048	NR			82		41,082	(c)
WI PFA - Wingate Univ	5.25%	10/1/2043	BBB			2,000		2,199,720
WI PFA - Wingate Univ	5.25%	10/1/2048	BBB			6,000		6,556,500
Total								207,761,729
Energy 0.19%
Lower AL Gas Dist - Goldman Sachs	5.00%	9/1/2034	A3			5,000		6,908,000

See Notes to Schedule of Investments. 79

Schedule of Investments (unaudited)(continued)

HIGH YIELD MUNICIPAL BOND FUND December 31, 2020

Investments	Interest Rate	Maturity Date	Credit Rating: S&P or Moody’s	Principal Amount (000)		Fair Value
Financial Services 0.63%
Berks Co IDA - Tower Hlth	5.00%	11/1/2047	BB+	$	5,650	$	6,059,004
Berks Co IDA - Tower Hlth	5.00%	11/1/2050	BB+		9,640		10,304,196
MA Ed Fin Auth AMT	4.125%	7/1/2046	BBB		5,915		6,247,600
Total							22,610,800
General Obligation 8.33%
Academical Village CCD	3.625%	5/1/2040	NR		2,320		2,405,005
Academical Village CCD	4.00%	5/1/2051	NR		6,000		6,274,020
American Samoa GO	6.625%	9/1/2035	Ba3		2,100		2,442,552
American Samoa GO†	7.125%	9/1/2038	Ba3		6,520		8,276,749
Bellwood GO	5.875%	12/1/2027	A		3,000		3,291,240
Bellwood GO	6.15%	12/1/2032	A		2,770		3,052,734
Chicago Brd Ed	5.00%	12/1/2029	BB-		5,000		5,836,950
Chicago Brd Ed	5.00%	12/1/2030	BB-		5,170		6,026,100
Chicago Brd Ed	5.00%	12/1/2031	BB-		2,500		2,901,650
Chicago Brd Ed	5.00%	12/1/2031	BB-		4,135		4,141,203
Chicago Brd Ed	5.00%	12/1/2032	BB-		2,000		2,317,880
Chicago Brd Ed	5.00%	12/1/2033	BB-		1,500		1,732,230
Chicago Brd Ed	5.00%	12/1/2042	BB-		11,605		11,901,972
Chicago Brd Ed	5.25%	12/1/2035	BB-		7,215		7,845,880
Chicago Brd Ed	5.25%	12/1/2039	BB-		8,610		9,315,762
Chicago Brd Ed	5.25%	12/1/2041	BB-		16,315		16,562,988
Chicago Brd Ed	6.50%	12/1/2046	BB-		5,000		5,970,100
Chicago Brd Ed†	6.75%	12/1/2030	BB-		2,000		2,578,320
Chicago Brd Ed	7.00%	12/1/2044	BB-		2,180		2,610,681
Chicago Brd Ed†	7.00%	12/1/2046	BB-		6,560		8,297,678
Chicago GO	5.25%	1/1/2028	BBB+		2,630		2,848,842
Chicago GO	5.25%	1/1/2032	BBB+		3,085		3,310,976
Chicago GO	5.50%	1/1/2033	BBB+		3,305		3,652,389
Chicago GO	5.50%	1/1/2037	BBB+		1,000		1,098,670
Chicago GO	5.50%	1/1/2049	BBB+		7,695		9,052,552
Chicago GO	6.00%	1/1/2038	BBB+		17,835		20,897,269
Chicago O’Hare Arpt AMT	5.00%	1/1/2052	A		5,000		5,783,150
Coralville GO	4.45%	5/1/2037	BB+		5,000		5,075,600
Coralville GO	4.50%	6/1/2032	BB+		4,250		4,448,560
Eaton Area Pk & Rec Dist	5.25%	12/1/2034	NR		1,250		1,367,475
Eaton Area Pk & Rec Dist	5.50%	12/1/2030	NR		710		780,098
Green Valley Ranch GO	5.875%	12/1/2050	NR		5,750		6,137,780

80 See Notes to Schedule of Investments.

Schedule of Investments (unaudited)(continued)

HIGH YIELD MUNICIPAL BOND FUND December 31, 2020

Investments	Interest Rate		Maturity Date	Credit Rating: S&P or Moody’s	Principal Amount (000)		Fair Value
General Obligation (continued)
IL State GO	3.50%		6/1/2029	BBB-	$	4,520	$	4,717,253
IL State GO	4.00%		1/1/2026	BBB-		2,790		2,848,144
IL State GO	4.00%		10/1/2034	BBB-		10,000		10,995,500
IL State GO	4.00%		6/1/2037	BBB-		7,040		7,412,064
IL State GO	4.00%		10/1/2037	BBB-		2,500		2,721,325
IL State GO	4.00%		11/1/2041	BBB-		2,730		2,920,254
IL State GO	4.00%		11/1/2044	BBB-		2,740		2,903,797
IL State GO	4.50%		11/1/2039	BBB-		1,100		1,187,868
IL State GO	5.50%		5/1/2030	BBB-		2,545		3,176,771
IL State GO	5.50%		5/1/2039	BBB-		8,280		10,026,666
International Center Met Dist	5.875%		12/1/2046	NR		6,500		6,951,425
ME Fin Auth - Casella Waste AMT†	4.375%	#(a)	8/1/2035	B		1,250		1,384,275
MI Strategic Fund - I-75 AMT (AGM)	4.25%		12/31/2038	AA		2,000		2,384,500
New Haven GO	5.50%		8/1/2033	BBB+		1,000		1,200,870
New Haven GO	5.50%		8/1/2035	BBB+		660		789,162
New Haven GO	5.50%		8/1/2037	BBB+		1,280		1,522,163
NJ Trans Trust Fund	Zero Coupon		12/15/2029	Baa1		18,840		15,533,768
PR Comwlth GO(b)	4.00%		7/1/2020	NR		1,175		822,500	(c)
PR Comwlth GO(b)	5.00%		7/1/2020	NR		11,695		8,420,400
PR Comwlth GO(b)	8.00%		7/1/2035	Ca		11,745		8,074,687
PR Comwlth GO TCRS (AMBAC)	4.50%		7/1/2023	Ca		1,295		1,296,774
Scranton GO†	5.00%		9/1/2028	BB+		500		587,995
Scranton GO†	5.00%		9/1/2029	BB+		1,000		1,169,110
Scranton GO	5.00%		11/15/2032	BB+		5,830		6,309,926
WI PFA - American Dream†	7.00%		12/1/2050	NR		18,050		16,213,412
Total								299,805,664
Health Care 19.59%
Antelope Valley Hlth	5.00%		3/1/2041	Ba3		4,000		4,105,680
Antelope Valley Hlth	5.00%		3/1/2046	Ba3		3,300		3,358,740
Antelope Valley Hlth	5.25%		3/1/2036	Ba3		1,000		1,047,750
Atlanta Dev Auth - Georgia Proton	6.00%		1/1/2023	NR		2,000		1,292,900
Atlanta Dev Auth - Georgia Proton	6.75%		1/1/2035	NR		1,500		956,205
Atlanta Dev Auth - Georgia Proton	7.00%		1/1/2040	NR		13,000		8,287,890
Berks Co IDA - Tower Hlth	5.00%	#(a)	2/1/2040	BB+		6,505		7,476,522
Blaine Sr Hsg & Hlthcare - Crest View	6.125%		7/1/2050	NR		5,000		4,755,250
CA Fin Auth - Standord Hlth	4.00%		8/15/2050	AA-		4,000		4,793,960

See Notes to Schedule of Investments. 81

Schedule of Investments (unaudited)(continued)

HIGH YIELD MUNICIPAL BOND FUND December 31, 2020

Investments	Interest Rate	Maturity Date	Credit Rating: S&P or Moody’s		Principal Amount (000)		Fair Value
Health Care (continued)
CA Stwde - Daughters of Charity	5.50%	7/1/2039	NR		$	1,999	$	1,898,684
CA Stwde - Daughters of Charity	5.75%	7/1/2024	NR			489		464,911
CA Stwde - Daughters of Charity	5.75%	7/1/2035	NR			979		929,823
CA Stwde - Eskaton Pptys	5.25%	11/15/2034	BBB			1,640		1,707,158
CA Stwde - Loma Linda Univ Med Ctr†	5.00%	12/1/2041	BB-			3,425		3,841,446
CA Stwde - Loma Linda Univ Med Ctr	5.25%	12/1/2044	BB-			8,805		9,705,135
CA Stwde - Loma Linda Univ Med Ctr†	5.25%	12/1/2056	BB-			11,000		12,381,380
CA Stwde - Loma Linda Univ Med Ctr	5.50%	12/1/2054	BB-			13,205		14,605,786
CA Stwde - Loma Linda Univ Med Ctr†	5.50%	12/1/2058	BB-			17,750		20,722,060
Chester Co Hlth & Ed - Immaculata Univ	5.00%	11/1/2037	BB-	(d)		4,000		3,599,200
Chester Co Hlth & Ed - Immaculata Univ	5.00%	11/1/2046	BB-	(d)		7,100		5,969,183
Clackamas Co Hosp - Rose Villa	5.375%	11/15/2055	NR			1,500		1,613,760
CO Hlth - Jefferson Met Ctr #1	5.75%	12/15/2050	NR			9,915		10,393,498
Crawford Hsp Auth - Meadville Med	6.00%	6/1/2046	NR			2,225		2,448,279
Crawford Hsp Auth - Meadville Med	6.00%	6/1/2051	NR			2,600		2,849,262
Cuyahoga Co Hsp - Metrohealth	5.00%	2/15/2057	BBB-			5,750		6,526,825
Cuyahoga Co Hsp - Metrohealth	5.50%	2/15/2052	BBB-			8,175		9,711,655
Cuyahoga Co Hsp - Metrohealth	5.50%	2/15/2057	BBB-			4,900		5,790,673
Decatur Hsp - Wise Hlth	5.25%	9/1/2044	BBB-			5,720		6,187,782
Denver Hlth & Hsp Auth	5.25%	12/1/2045	BBB			3,700		3,983,235
Duluth Econ Dev Auth - Essentia Health	5.25%	2/15/2058	A-			18,000		21,536,820
Floyd Co Dev Auth - Spires Berry College	6.25%	12/1/2048	NR			2,500		2,388,875
Floyd Co Dev Auth - Spires Berry College	6.50%	12/1/2053	NR			8,500		8,329,830
Franklin Hlth - Provision Proton†(b)	7.50%	6/1/2047	NR			7,635		2,290,500
Fruita CO Hlth - Canyons Hosp & Med Centr†	5.375%	1/1/2033	NR			3,400		3,860,564
Fruita CO Hlth - Canyons Hosp & Med Centr†	5.50%	1/1/2048	NR			11,000		12,087,570
Fulton Co - Canterbury Court†	5.00%	4/1/2047	NR			5,000		5,104,550
Fulton Co - Canterbury Court†	5.00%	4/1/2054	NR			5,000		5,080,650
Fulton Co Med Ctr	5.00%	7/1/2046	NR			4,450		4,657,904
Fulton Co Med Ctr	5.00%	7/1/2051	NR			5,000		5,206,800
Gainesville & Hall Co Hsp–NE GA Hlth GTD	5.50%	8/15/2054	AA-			3,600		4,203,180
Glendale IDA - Beatitudes	5.00%	11/15/2036	NR			1,500		1,625,610
Glendale IDA - Beatitudes	5.00%	11/15/2040	NR			4,000		4,310,640
Glendale IDA - Beatitudes	5.00%	11/15/2045	NR			1,400		1,500,268
Glendale IDA - Beatitudes	5.00%	11/15/2053	NR			7,470		8,029,876
Guadalupe Co - Seguin City Hsp	5.00%	12/1/2040	BB			4,880		5,211,938
Guadalupe Co - Seguin City Hsp	5.00%	12/1/2045	BB			910		953,389

82 See Notes to Schedule of Investments.

Schedule of Investments (unaudited)(continued)

HIGH YIELD MUNICIPAL BOND FUND December 31, 2020

Investments	Interest Rate		Maturity Date	Credit Rating: S&P or Moody’s		Principal Amount (000)		Fair Value
Health Care (continued)
Harris Co Cultural Ed - Brazos	5.125%		1/1/2048	BBB-	(d)	$	1,655	$	1,698,543
Harris Co Cultural Ed - Brazos	7.00%		1/1/2043	BBB-	(d)		3,000		3,387,990
Hillsborough Co IDA - Tampa General	4.00%		8/1/2050	Baa1			2,000		2,289,280
Hillsborough Co IDA - Tampa General	4.00%		8/1/2055	Baa1			6,415		7,303,477
Holmes Co Hsp - Doctors Mem Hsp	5.75%		11/1/2026	NR			3,760		3,683,710	(c)
Holmes Co Hsp - Doctors Mem Hsp	6.00%		11/1/2038	NR			7,115		7,114,644	(c)
Howard Co Retmt Cmnty - Vantage House	5.00%		4/1/2044	NR			2,955		3,000,655
Howard Co Retmt Cmnty - Vantage House	5.00%		4/1/2046	NR			7,000		7,089,250
IA Fin Auth - Iowa Fertilizer Co	5.25%	#(a)	12/1/2050	BB-			12,720		13,866,962
IL Fin Auth - Landing / Plymouth Place	6.00%		5/15/2043	BB+	(d)		2,165		2,318,888
IL Fin Auth - Lutheran Life	5.00%		11/1/2049	NR			2,500		2,676,500
IL Fin Auth - Univ of Illinois Hlth	4.00%		10/1/2040	BBB+			1,035		1,169,105
IL Fin Auth - Univ of Illinois Hlth	4.00%		10/1/2050	BBB+			2,500		2,760,850
IL Fin Auth - Univ of Illinois Hlth	4.00%		10/1/2055	BBB+			2,780		3,054,553
King Co Pub Hsp - Snoqualmie Vly Hsp	6.25%		12/1/2045	NR			3,500		3,837,470
Kirkwood IDA - Aberdeen Hts	5.25%		5/15/2042	BB	(d)		1,750		1,901,375
Kirkwood IDA - Aberdeen Hts	5.25%		5/15/2050	BB	(d)		5,250		5,660,970
KY EDFA - Masonic Homes	5.375%		11/15/2032	NR			3,000		3,042,450
LA Env Facs - St James Place	6.25%		11/15/2045	NR			6,100		6,530,843
LA Stwde - Childrens Med Ctr	4.00%		6/1/2050	A+			1,375		1,595,193
Licking Co Hlth - Kendal Granville	6.00%		7/1/2050	NR			6,000		4,342,500
Lucas Co Hsp - ProMedica Hlth	5.25%		11/15/2048	BBB			8,650		10,060,209
MA DFA - Atrius Hlth	4.00%		6/1/2049	BBB			5,885		6,473,382
Magnolia West CDD	5.35%		5/1/2037	NR			245		246,786
Marion Co - United Church Homes	5.125%		12/1/2049	NR			3,000		3,293,910
Martin Hsp Dist	7.25%		4/1/2036	BBB	(d)		3,450		3,483,465
MD Hlth & HI Ed - Doctors	5.00%		7/1/2038	Baa3			7,275		8,254,870
ME Hlth & HI Ed - Mainegeneral Hlth	6.00%		7/1/2026	Ba3			225		229,041
ME Hlth & HI Ed - Mainegeneral Hlth	6.75%		7/1/2036	Ba3			245		249,599
Mesquite Hlth - Christian Care Ctrs	5.00%		2/15/2026	B+	(d)		2,125		2,064,289
Mesquite Hlth - Christian Care Ctrs	5.00%		2/15/2030	B+	(d)		905		850,600
Mesquite Hlth - Christian Care Ctrs	5.00%		2/15/2035	B+	(d)		2,600		2,336,334
Mesquite Hlth - Christian Care Ctrs	5.00%		2/15/2036	B+	(d)		1,250		1,113,150
Mesquite Hlth - Christian Care Ctrs	5.125%		2/15/2042	B+	(d)		3,955		3,399,718
Montgomery Co IDA - Einstein Hlthcare	5.25%		1/15/2045	Ba1			10,000		10,990,500
Moon IDC - Baptist Homes	6.00%		7/1/2045	NR			9,250		9,746,817

See Notes to Schedule of Investments. 83

Schedule of Investments (unaudited)(continued)

HIGH YIELD MUNICIPAL BOND FUND December 31, 2020

Investments	Interest Rate	Maturity Date	Credit Rating: S&P or Moody’s		Principal Amount (000)		Fair Value
Health Care (continued)
Muskingum Co Hsp - Genesis Hlthcare	5.00%	2/15/2033	BB+		$	2,765	$	2,909,112
Muskingum Co Hsp - Genesis Hlthcare	5.00%	2/15/2044	BB+			10,690		11,134,276
Muskingum Co Hsp - Genesis Hlthcare	5.00%	2/15/2048	BB+			7,000		7,268,030
NH Hlth & Ed - Dartmouth Hitchcock	5.00%	8/1/2059	A			7,075		10,995,399
NJ EDA - Bancroft Neuro	5.00%	6/1/2036	NR			1,500		1,658,880
NM Hsp - Gerald Champion	5.50%	7/1/2042	A-			5,625		5,920,987
Norfolk Redev & Hsg - Harbor’s Edge	5.25%	1/1/2054	NR			3,300		3,507,966
NYC IDA - Yankee Stadium	3.00%	3/1/2049	Baa1			13,285		13,875,385
Oconee Co IDA - Presby Village	6.25%	12/1/2048	NR			2,000		1,999,860
Oconee Co IDA - Presby Village	6.375%	12/1/2053	NR			3,000		2,989,530
OK DFA - OU Med	5.50%	8/15/2052	Baa3			6,450		7,743,354
OK DFA - OU Med	5.50%	8/15/2057	Baa3			6,130		7,320,017
Oroville - Oroville Hsp	5.25%	4/1/2039	BB			2,060		2,310,331
Oroville - Oroville Hsp	5.25%	4/1/2054	BB			12,545		13,758,227
PA Hosp Auth - Doylestown	4.00%	7/1/2045	BBB-			4,375		4,671,275
PA Hosp Auth - Doylestown	5.00%	7/1/2049	BBB-			2,375		2,723,698
Palm Beach Co Hlth - Lifespace	5.00%	5/15/2053	BBB	(d)		7,125		7,781,141
Palomar Hlth	5.00%	11/1/2039	BBB			2,500		2,881,800
Philadelphia Hsps - Temple Univ Hlth	5.625%	7/1/2036	BBB-			6,250		6,637,375
Philadelphia Hsps - Temple Univ Hlth	5.625%	7/1/2042	BBB-			9,375		9,923,906
Philadelphia IDA - Gtr Philadelphia Hlth	6.50%	6/1/2045	NR			2,485		2,605,622
Philadelphia IDA - Gtr Philadelphia Hlth	6.625%	6/1/2050	NR			3,415		3,589,131
Philadelphia IDA - Wesley	5.00%	7/1/2042	BB	(d)		3,355		3,506,042
Philadelphia IDA - Wesley	5.00%	7/1/2049	BB	(d)		250		259,673
RI Hlth & Ed - Care New England	5.00%	9/1/2036	B+			7,000		7,623,490
Salem Hsp Fac - Capital Manor	5.625%	5/15/2032	BBB	(d)		1,000		1,045,370
Salem Hsp Fac - Capital Manor	6.00%	5/15/2047	BBB	(d)		1,600		1,666,976
San Buenaventura - Cmnty Mem Hlth	8.00%	12/1/2026	BB			10,000		10,620,800
SC Jobs EDA - Hampton Regl Med	5.00%	11/1/2042	NR			3,815		4,289,853
SC Jobs EDA - Hampton Regl Med	5.00%	11/1/2046	NR			6,070		6,740,796	(c)
SE Port Auth - Memorial Hlth	5.50%	12/1/2043	BB-	(d)		5,025		5,308,711
SE Port Auth - Memorial Hlth	6.00%	12/1/2042	BB-	(d)		1,660		1,729,720
Seminole Co - Legacy Pointe	5.50%	11/15/2049	NR			8,000		7,643,520
Seminole Co - Legacy Pointe	5.75%	11/15/2054	NR			4,000		3,872,360
Shelby Co - Farms at Bailey Station	5.75%	10/1/2059	NR			22,000		22,057,640
Tampa Hlth & Ed - Moffit Cancer	5.00%	7/1/2050	A2			5,250		6,540,870
Tarrant Co Cultural - Buckingham(b)	5.50%	11/15/2045	NR			3,650		2,190,000

84 See Notes to Schedule of Investments.

Schedule of Investments (unaudited)(continued)

HIGH YIELD MUNICIPAL BOND FUND December 31, 2020

Investments	Interest Rate	Maturity Date	Credit Rating: S&P or Moody’s		Principal Amount (000)		Fair Value
Health Care (continued)
Tulsa Co Industrial Auth - Montereau	5.25%	11/15/2045	BBB-	(d)	$	2,750	$	2,954,600
Upper San Juan Hlth Dist	6.00%	6/1/2041	NR			2,225		2,448,168	(c)
Upper San Juan Hlth Dist	6.125%	6/1/2046	NR			3,015		3,298,892	(c)
Vigo CO Hsp - Union Hsp	8.00%	9/1/2041	NR			2,955		3,103,075
WA HFC - Mirabella†	6.50%	10/1/2032	NR			1,960		2,010,490
WA HFC - Mirabella†	6.75%	10/1/2047	NR			3,000		3,083,070
WA HFC - Rockwood†	6.00%	1/1/2024	NR			685		715,188
Ward Co Hlth - Trinity Hlth	5.00%	6/1/2053	BBB-			8,750		9,911,125
WI Hlth & Ed - American Baptist	5.00%	8/1/2039	NR			1,625		1,719,023
WI Hlth & Ed - Sauk-Prarie Mem Hsp	5.375%	2/1/2048	B1			4,000		4,093,000
WI Hlth & Ed - St. Camillus	5.00%	11/1/2039	NR			1,000		1,071,360
WI Hlth & Ed - St. Camillus	5.00%	11/1/2046	NR			1,100		1,160,104
WI Hlth & Ed - St. Camillus	5.00%	11/1/2054	NR			5,000		5,224,550
WI PFA - Alabama Proton†	6.85%	10/1/2047	NR			4,500		5,190,480
WI PFA - Bancroft Neuro†	4.625%	6/1/2036	NR			4,330		4,642,842
WI PFA - Bancroft Neuro†	5.125%	6/1/2048	NR			5,900		6,398,491
WI PFA - Delray Beach Radiation†	6.85%	11/1/2046	NR			3,835		4,156,220
WI PFA - Las Ventanas	Zero Coupon	10/1/2042	NR			2,961		60,997
WI PFA - Las Ventanas	Zero Coupon	10/1/2042	NR			1,555		637,363
WI PFA - Las Ventanas	7.00%	10/1/2042	NR			6,895		6,902,860
WI PFA - Mary’s Woods†	5.25%	5/15/2052	BB	(d)		2,300		2,451,639
WI PFA - Rose Villa†	5.75%	11/15/2044	NR			2,035		2,188,256
Wilson Co Hsp	5.60%	9/1/2036	NR			3,530		3,530,529
Total								705,154,919
Housing 2.35%
Alachua Co Hlth - Oak Hammock	8.00%	10/1/2042	NR			700		767,445
Alachua Co Hlth - Oak Hammock	8.00%	10/1/2046	NR			1,000		1,094,560
AZ IDA - NCCU Prop Student Hsg (BAM)	5.00%	6/1/2058	AA			2,500		2,980,600
CA CHA - The Arbors†	5.00%	8/1/2050	NR			4,400		5,072,012
CA Cmty Hsg - Annadel Apts†	5.00%	4/1/2049	NR			9,000		10,206,540
CA Cmty Hsg - Serenity at Larkspur†	5.00%	2/1/2050	NR			10,800		12,092,220
CA Cmty Hsg - Verdant†	5.00%	8/1/2049	NR			10,200		11,615,964
CA HFA - MFH	4.25%	1/15/2035	BBB+			3,483		4,030,059
CA Muni Fin - Caritas Affordable Hsg	5.25%	8/15/2039	A-			550		613,063
CEDA - Provident Student Hsg	5.00%	8/1/2057	Baa3			1,885		2,225,865
LA HFA - Gmf-LA Chateau	8.00%	9/1/2039	CCC			2,995		2,631,107

See Notes to Schedule of Investments. 85

Schedule of Investments (unaudited)(continued)

HIGH YIELD MUNICIPAL BOND FUND December 31, 2020

Investments	Interest Rate	Maturity Date	Credit Rating: S&P or Moody’s	Principal Amount (000)		Fair Value
Housing (continued)
LA Pub Facs Auth - Provident LSU	5.00%	7/1/2059	A3	$	2,915	$	3,442,382
MI HDA	3.60%	10/1/2060	AA		6,330		6,791,837
Roanoke Co EDA - Richfield Living	5.25%	9/1/2049	NR		15,000		15,165,300
Roanoke Co EDA - Richfield Living	5.375%	9/1/2054	NR		6,000		6,076,140
Total							84,805,094
Lease Obligations 3.52%
CA Pub Wks - Various Cap Proj	5.00%	4/1/2034	Aa3		5,000		5,274,500
IN Fin Auth - OH River Brdgs AMT	5.00%	7/1/2040	BBB+		2,320		2,489,685
IN Fin Auth - OH River Brdgs AMT	5.00%	7/1/2044	BBB+		8,000		8,549,840
Met Pier & Expo Auth - Mccormick Place (AGM)	Zero Coupon	12/15/2056	AA		5,250		1,599,202
Met Pier & Expo Auth - Mccormick Place (NPFGC)(FGIC)	Zero Coupon	6/15/2037	BBB		8,650		5,472,249
Met Pier & Expo Auth - Mccormick Place (NPFGC)(FGIC)	5.50%	6/15/2029	BBB		3,000		3,535,350
NJ EDA - Bldgs	5.00%	6/15/2047	Baa1		5,450		6,359,060
NJ EDA - Goethals Brdg AMT	5.375%	1/1/2043	BBB		1,175		1,298,869
NJ EDA - Goethals Brdg AMT	5.625%	1/1/2052	BBB		5,000		5,551,000
NJ EDA - Sch Facs	5.00%	6/15/2042	Baa1		2,000		2,325,280
NJ EDA - Sch Facs	5.00%	6/15/2043	Baa1		5,000		5,941,150
NJ EDA - Sch Facs	5.50%	6/15/2029	Baa1		3,575		4,385,560
NJ EDA - State House	5.00%	6/15/2043	Baa1		3,800		4,515,274
NJ Trans Trust Fund	Zero Coupon	12/15/2034	Baa1		13,420		9,303,012
NJ Trans Trust Fund	Zero Coupon	12/15/2038	Baa1		15,405		9,192,626
NJ Trans Trust Fund	4.00%	12/15/2039	Baa1		2,900		3,264,762
NJ Trans Trust Fund	4.00%	6/15/2050	Baa1		27,500		30,183,725
NJ Trans Trust Fund	5.00%	12/15/2035	Baa1		3,250		3,955,900
NJ Trans Trust Fund	5.00%	12/15/2039	Baa1		3,300		4,020,390
NJ Trans Trust Fund (NPFGC)(FGIC)	Zero Coupon	12/15/2031	Baa1		3,690		2,936,982
PR Pub Fin Corp(b)	5.50%	8/1/2031	C		12,250		153,125
St Louis Fin Corp - Convention Center (AGM)	5.00%	10/1/2045	AA		2,500		3,129,075
St Louis Fin Corp - Convention Center (AGM)	5.00%	10/1/2049	AA		2,625		3,255,525
Total							126,692,141

86 See Notes to Schedule of Investments.

Schedule of Investments (unaudited)(continued)

HIGH YIELD MUNICIPAL BOND FUND December 31, 2020

Investments	Interest Rate	Maturity Date	Credit Rating: S&P or Moody’s	Principal Amount (000)		Fair Value
Other Revenue 6.14%
Arlington HI Ed Fin Corp - Arlington Classics	5.00%	8/15/2045	BBB-	$	2,250	$	2,512,598
Arlington Hi Ed Fin Corp - Newman Intl Acad	5.50%	8/15/2046	NR		5,000		5,497,250
AZ IDA - American Charter Sch†	6.00%	7/1/2047	BB+		2,460		2,954,829
AZ IDA - Odyssey Prep†	5.50%	7/1/2052	BB-		750		812,970
CA Sch Fin Auth - Kipp LA	5.125%	7/1/2044	BBB		2,390		2,672,259
Cap Trust Agy - Franklin Academy†	5.00%	12/15/2040	NR		1,220		1,324,444
Cap Trust Agy - Franklin Academy†	5.00%	12/15/2050	NR		6,250		6,719,500
Cap Trust Agy - Franklin Academy†	5.00%	12/15/2055	NR		5,690		6,102,639
Chester Co IDA - Collegium Charter Sch	5.125%	10/15/2037	BB		1,000		1,102,070
Chester Co IDA - Collegium Charter Sch	5.25%	10/15/2047	BB		2,500		2,730,100
Chester Co IDA - Collegium Charter Sch	5.375%	10/15/2042	BB		5,000		5,170,450
Cleveland Co Port Auth - Playhouse Sq	5.25%	12/1/2038	BB+		1,400		1,519,532
Cleveland Co Port Auth - Playhouse Sq	5.50%	12/1/2043	BB+		1,850		2,016,778
Cleveland Co Port Auth - Playhouse Sq	5.50%	12/1/2053	BB+		9,075		9,829,586
Clifton Higher Ed - IDEA Pub Schs	6.00%	8/15/2043	A-		1,000		1,106,730
Clifton Higher Ed - Intl Ldrshp Sch	6.125%	8/15/2048	NR		22,025		25,502,087
FL DFC - FL Charter Foundation†	5.00%	7/15/2046	NR		4,000		4,293,960
FL DFC - Mater Admy	5.00%	6/15/2050	BBB		2,140		2,431,447
FL DFC - Mater Admy	5.00%	6/15/2055	BBB		1,500		1,693,395
FL DFC - Palm Bay Admy†	Zero Coupon	5/15/2037	NR		940		9,400
FL DFC - Palm Bay Admy†	Zero Coupon	5/15/2037	NR		1,220		804,029
FL DFC - Palm Bay Admy†	6.375%	5/15/2037	NR		2,620		2,342,254	(c)
FL DFC - Renaissance Chtr Sch†	6.125%	6/15/2046	NR		5,000		5,610,750
FL DFC - Renaissance Chtr Sch 2020†	5.00%	9/15/2040	NR		1,050		1,149,120
FL DFC - Renaissance Chtr Sch 2020†	5.00%	9/15/2050	NR		2,200		2,389,838
Florence Twn IDA - Legacy Trad Sch	6.00%	7/1/2043	BB+		3,250		3,487,802
Jefferson Parish Econ Dev Dist - Kenner†	5.50%	6/15/2038	NR		3,200		3,596,096
Jefferson Parish Econ Dev Dist - Kenner†	5.625%	6/15/2048	NR		4,350		4,839,592
Lower AL Gas Dist - Goldman Sachs	5.00%	9/1/2046	A3		26,855		40,205,158
Main St Nat Gas - Macquarie	5.00%	5/15/2043	A3		1,900		2,286,669
Main St Nat Gas - Macquarie	5.00%	5/15/2049	A3		14,585		22,023,496
Maricopa Co IDA - Legacy Schools†	5.00%	7/1/2049	BB+		2,335		2,632,316
Maricopa Co IDA - Legacy Schools†	5.00%	7/1/2054	BB+		1,465		1,645,766
Maricopa Co IDA - Paradise Schools†	5.00%	7/1/2047	BB+		4,000		4,357,640
MD EDC - Chesapeake Bay Hyatt(b)	5.00%	12/1/2031	NR		10,700		6,420,000	(c)

See Notes to Schedule of Investments. 87

Schedule of Investments (unaudited)(continued)

HIGH YIELD MUNICIPAL BOND FUND December 31, 2020

Investments	Interest Rate	Maturity Date	Credit Rating: S&P or Moody’s	Principal Amount (000)		Fair Value
Other Revenue (continued)
MD EDC - Chesapeake Bay Hyatt(b)	5.25%	12/1/2031	NR	$	3,000	$	1,800,000	(c)
MI Fin Auth - Bradford Admy	4.30%	9/1/2030	NR		1,165		1,202,140
MI Fin Auth - Bradford Admy	4.80%	9/1/2040	NR		1,845		1,908,320
MI Fin Auth - Bradford Admy	5.00%	9/1/2050	NR		3,010		3,112,340
MI Pub Ed - Crescent Admy	7.00%	10/1/2036	NR		640		640,902
Michigan St Strategic FD Escrow(e)	Zero Coupon	9/1/2020	NR		5,000		500	(f)
Middlesex Co Impt Auth - Heldrich Ctr(b)	6.125%	1/1/2025	NR		2,790		55,800
Middlesex Co Impt Auth - Heldrich Ctr(b)	6.25%	1/1/2037	NR		5,755		115,100
NYC IDA - Queens Stadium (AMBAC)	5.00%	1/1/2036	Baa3		3,165		3,166,582
Ohio St Pollution Ctl Rev Escrow	Zero Coupon	3/1/2015	NR		2,965		297	(f)
Phoenix IDA - Basis Schs†	5.00%	7/1/2046	BB		2,000		2,165,940
Pima Co IDA - Edkey Chtr Sch†	5.00%	7/1/2049	NR		6,000		6,232,920
Pima Co IDA - Edkey Chtr Sch†	5.00%	7/1/2055	NR		4,000		4,119,400
Plymouth Ed Ctr Charter Sch	5.375%	11/1/2030	D		1,425		991,928
UT Charter Sch - Freedom Academy†	5.375%	6/15/2048	NR		5,150		5,687,042
Total							220,991,761
Special Tax 4.52%
Allentown Neighborhood Impt†	5.00%	5/1/2032	Ba3		2,425		2,662,747
Allentown Neighborhood Impt†	5.375%	5/1/2042	NR		5,500		6,023,600
Anne Arundel Co Spl Tax - Vlgs Two Rivers	5.125%	7/1/2036	NR		1,030		1,062,981
Anne Arundel Co Spl Tax - Vlgs Two Rivers	5.25%	7/1/2044	NR		2,150		2,218,327
Arborwood CDD	6.90%	5/1/2025	NR		175		178,897	(c)
Arborwood CDD	6.90%	5/1/2036	NR		55		55,608	(c)
Arborwood CDD	6.90%	5/1/2036	NR		685		697,063	(c)
Berkeley Co - Nexton Imp Dist	4.25%	11/1/2040	NR		1,000		1,079,320
Berkeley Co - Nexton Imp Dist	4.375%	11/1/2049	NR		1,500		1,615,350	(c)
Brighton Crossing Met Dist #6	5.00%	12/1/2050	NR		1,340		1,367,122
Celebration Pointe CDD†	5.00%	5/1/2048	NR		3,400		3,620,592
Compton Redev Agy	6.00%	8/1/2042	NR		4,750		4,763,585
Denver Intl Business Ctr Met Dist #1	6.00%	12/1/2048	NR		2,300		2,470,683
Frederick Co - Jefferson Technology Park†	4.625%	7/1/2043	NR		2,235		2,401,038
Frederick Co - Urbana CDA	4.00%	7/1/2050	NR		3,500		3,634,505
Grandview IDA - Grandview Crossing(b)	5.75%	12/1/2028	NR		1,000		170,000
Inland Valley Redev Agy	5.25%	9/1/2037	A-		3,375		3,800,149

88 See Notes to Schedule of Investments.

Schedule of Investments (unaudited)(continued)

HIGH YIELD MUNICIPAL BOND FUND December 31, 2020

Investments	Interest Rate	Maturity Date	Credit Rating: S&P or Moody’s	Principal Amount (000)		Fair Value
Special Tax (continued)
Miami World Ctr CDD	5.25%	11/1/2049	NR	$	4,500	$	4,982,670
MIDA Mount Village PID	4.25%	8/1/2035	NR		1,645		1,746,348	(c)
MIDA Mount Village PID	4.50%	8/1/2040	NR		1,250		1,326,050	(c)
MIDA Mount Village PID	5.00%	8/1/2050	NR		6,500		6,901,375
North Las Vegas Improv Dist - Vall	4.50%	6/1/2039	NR		500		534,575
North Las Vegas Improv Dist - Vall	4.625%	6/1/2043	NR		500		534,265
North Las Vegas Improv Dist - Vall	4.625%	6/1/2049	NR		765		812,017
North Range Met Dist	5.00%	12/1/2040	NR		2,000		2,096,340
North Range Met Dist	5.25%	12/1/2050	NR		5,000		5,245,900
Nthrn Palm Bch Co Impt Dist	5.00%	8/1/2037	NR		750		850,590
Nthrn Palm Bch Co Impt Dist	5.00%	8/1/2046	NR		2,850		3,190,547
Nthrn Palm Bch Co Impt Dist	5.00%	8/1/2046	NR		5,000		5,345,550
NYC IDA - Queens Stadium (AMBAC)	5.00%	1/1/2031	Baa3		6,110		6,112,627
NYC IDA - Yankee Stadium	4.00%	3/1/2045	Baa1		3,600		4,152,168
PA COP	4.00%	7/1/2046	A		3,175		3,602,323
Peninsula Town Center†	5.00%	9/1/2037	NR		875		937,309
Peninsula Town Center†	5.00%	9/1/2045	NR		2,250		2,404,575
Prairie Ctr Met Dist #3†	5.00%	12/15/2041	NR		3,475		3,645,900
Prince George Co Spl Ob†	5.00%	7/1/2046	NR		5,000		5,347,900
Prince George Co Spl Ob - Westphalia†	5.125%	7/1/2039	NR		1,100		1,193,467
Prince George Co Spl Ob - Westphalia†	5.25%	7/1/2048	NR		5,125		5,557,755
River Islands PFA - CFD 2003	5.50%	9/1/2045	NR		2,925		3,107,023
River Islands PFA - CFD 2003	5.50%	9/1/2045	NR		6,505		6,909,806
Scranton RDA GTD	5.00%	11/15/2028	BB+		5,000		5,069,100
St Louis IDA - Ballpark Vlg	4.375%	11/15/2035	NR		3,500		3,210,235
St Louis IDA - Ballpark Vlg	4.75%	11/15/2047	NR		4,875		4,486,365
Stone Canyon CID(b)	5.70%	4/1/2022	NR		1,485		386,100
Tahoe Douglas Visitors Auth	5.00%	7/1/2045	NR		2,800		3,091,396
Tahoe Douglas Visitors Auth	5.00%	7/1/2051	NR		3,000		3,299,610
Tern Bay CDD	5.375%	5/1/2037	NR		405		405,385
Village CDD #10	6.00%	5/1/2044	NR		865		950,773
Village CDD #12†	4.25%	5/1/2043	NR		7,265		7,967,889
Village CDD #12†	4.375%	5/1/2050	NR		2,905		3,185,739
Village CDD #13	3.70%	5/1/2050	NR		6,000		6,322,980
Village Met Dist - Avon	5.00%	12/1/2040	NR		1,500		1,614,420
Village Met Dist - Avon	5.00%	12/1/2049	NR		3,000		3,193,080
West Villages Impr Dist - #7	4.75%	5/1/2039	NR		1,750		1,932,840
West Villages Impr Dist - #7	5.00%	5/1/2050	NR		3,090		3,438,490
Total							162,913,049

See Notes to Schedule of Investments. 89

Schedule of Investments (unaudited)(continued)

HIGH YIELD MUNICIPAL BOND FUND December 31, 2020

Investments	Interest Rate	Maturity Date	Credit Rating: S&P or Moody’s	Principal Amount (000)		Fair Value
Tax Revenue 4.97%
American Samoa GO†	6.50%	9/1/2028	Ba3	$	2,750	$	3,337,510
City of Sparks - Legends at Sparks Marina†	2.50%	6/15/2024	Ba2		335		336,575
City of Sparks - Legends at Sparks Marina†	2.75%	6/15/2028	Ba2		750		756,008
Met Pier & Expo Auth - Mccormick Place	Zero Coupon	12/15/2054	BBB		21,595		5,584,683
Met Pier & Expo Auth - Mccormick Place	5.00%	6/15/2053	BBB		6,045		6,618,066
Met Pier & Expo Auth - Mccormick Place	5.50%	6/15/2053	BBB		9,150		10,226,589
Met Pier & Expo Auth - Mccormick Place (AGM)	Zero Coupon	12/15/2052	AA		5,250		1,842,908
Met Pier & Expo Auth - Mccormick Place (NPFGC)(FGIC)	Zero Coupon	12/15/2036	BBB		20,000		12,928,400
Met Pier & Expo Auth - Mccormick Place (NPFGC)(FGIC)	Zero Coupon	12/15/2037	BBB		10,000		6,220,000
NY UDC - PIT	3.00%	3/15/2050	AA+		2,500		2,652,900
PR Corp Sales Tax	Zero Coupon	7/1/2029	NR		1,066		906,644
PR Corp Sales Tax	Zero Coupon	7/1/2033	NR		5,283		3,789,390
PR Corp Sales Tax	4.329%	7/1/2040	NR		2,000		2,170,880
PR Corp Sales Tax	4.329%	7/1/2040	NR		16,627		18,059,250
PR Corp Sales Tax	4.536%	7/1/2053	NR		477		518,642
PR Corp Sales Tax	4.55%	7/1/2040	NR		1,337		1,470,860
PR Corp Sales Tax	4.75%	7/1/2053	NR		34,203		37,673,236
PR Corp Sales Tax	4.784%	7/1/2058	NR		4,064		4,478,284
PR Corp Sales Tax	5.00%	7/1/2058	NR		51,486		57,504,713
Reno - ReTRAC-Reno Trans†	Zero Coupon	7/1/2058	NR		18,500		1,872,015
Total							178,947,553
Tobacco 11.01%
Buckeye Tobacco	Zero Coupon	6/1/2057	NR		76,000		11,580,880
Buckeye Tobacco	5.00%	6/1/2055	NR		85,100		96,345,965
CA Stwde - Tobacco Settlement	Zero Coupon	6/1/2046	NR		26,325		5,513,771
CA Stwde - Tobacco Settlement†	Zero Coupon	6/1/2055	NR		42,500		2,322,625
Erie Co Tobacco	Zero Coupon	6/1/2060	NR		35,000		1,691,900
Golden St Tobacco	Zero Coupon	6/1/2047	CCC-		25,000		5,506,500
Golden St Tobacco	5.00%	6/1/2047	NR		20,435		21,199,678
Golden St Tobacco	5.00%	6/1/2047	NR		35,295		36,615,739

90 See Notes to Schedule of Investments.

Schedule of Investments (unaudited)(continued)

HIGH YIELD MUNICIPAL BOND FUND December 31, 2020

Investments	Interest Rate	Maturity Date	Credit Rating: S&P or Moody’s	Principal Amount (000)		Fair Value
Tobacco (continued)
Golden St Tobacco	5.25%	6/1/2047	NR	$	14,675	$	15,286,067
Golden St Tobacco	5.30%	6/1/2037	B-		5,020		5,234,806
Inland Empire Tobacco†	Zero Coupon	6/1/2057	CCC		47,000		2,989,200
Los Angeles Co Tobacco	Zero Coupon	6/1/2055	NR		18,000		3,384,360
Los Angeles Co Tobacco	4.00%	6/1/2049	BBB+		2,015		2,342,055
Los Angeles Co Tobacco	5.00%	6/1/2049	BBB-		250		306,770
Merced Co Tobacco	5.00%	6/1/2050	NR		1,500		1,737,285
MI Tob Settlement	Zero Coupon	6/1/2058	NR		225,900		9,910,233
MI Tob Settlement	4.00%	6/1/2049	BBB+		3,370		3,828,893
MI Tob Settlement	5.00%	6/1/2049	BBB-		1,500		1,824,270
Monroe Co Tobacco	Zero Coupon	6/1/2061	NR		22,900		894,016
Nassau Co Tobacco	Zero Coupon	6/1/2060	NR		50,000		2,472,000
Nassau Co Tobacco	5.00%	6/1/2035	B-		3,170		3,203,919
Nassau Co Tobacco	5.25%	6/1/2026	B-		4,000		4,042,800
Nthrn AK Tobacco	5.00%	6/1/2032	B3		5,025		5,099,269
Nthrn AK Tobacco	5.00%	6/1/2046	B3		6,930		7,032,425
Nthrn CA Tobacco	Zero Coupon	6/1/2045	CCC-		42,500		8,509,350
Nthrn CA Tobacco	5.50%	6/1/2045	B-		5,280		5,304,974
RI Tob Settlement	Zero Coupon	6/1/2052	CCC-		25,885		4,110,797
Rockland Tobacco†	Zero Coupon	8/15/2060	NR		41,035		2,118,227
San Diego Co Tobacco	Zero Coupon	6/1/2054	NR		16,000		2,906,400
San Diego Co Tobacco	5.00%	6/1/2048	BBB-		2,550		3,101,285
Silicon Valley Tobacco	Zero Coupon	6/1/2056	NR		20,000		1,842,400
Sthrn CA Tobacco	Zero Coupon	6/1/2046	CCC-		15,000		3,027,150
Suffolk Tobacco Asset Sec Corp	6.00%	6/1/2048	NR		1,125		1,126,553
Suffolk Tobacco Asset Sec Corp	6.625%	6/1/2044	NR		6,100		6,312,463
Tobacco Settlement Auth IA	Zero Coupon	6/1/2046	NR		10,000		1,689,200
Tobacco Settlement Auth IA	5.375%	6/1/2038	B-		6,220		6,304,281
Tobacco Settlement Auth IA	5.50%	6/1/2042	B-		3,910		3,962,980
Tobacco Settlement Fin Corp DC	Zero Coupon	6/15/2046	NR		4,780		702,803
Tobacco Settlement Fin Corp DC	Zero Coupon	6/15/2055	NR		21,000		1,804,320
Tobacco Settlement Fin Corp NJ	5.00%	6/1/2046	BB+		17,125		20,002,514
Tobacco Settlement Fin Corp VA	Zero Coupon	6/1/2047	CCC-		9,500		2,115,460
Tobacco Settlement Fin Corp VA	Zero Coupon	6/1/2047	CCC-		51,265		11,682,268
Tobacco Settlement Fin Corp VA	5.00%	6/1/2047	B-		17,575		17,645,827
TSASC	5.00%	6/1/2045	CCC+		4,670		5,026,835
TSASC	5.00%	6/1/2048	NR		34,170		36,601,195
Total							396,262,708

See Notes to Schedule of Investments. 91

Schedule of Investments (unaudited)(continued)

HIGH YIELD MUNICIPAL BOND FUND December 31, 2020

Investments	Interest Rate	Maturity Date	Credit Rating: S&P or Moody’s		Principal Amount (000)		Fair Value
Transportation 8.96%
CA Muni Fin - LINXS AMT	4.00%	12/31/2047	BBB-	(d)	$	11,200	$	12,238,016
Chicago O’Hare Arpt	4.00%	1/1/2044	A			10,000		11,392,300
Chicago O’Hare Arpt AMT	5.00%	1/1/2048	A			5,000		5,976,850
Chicago Trans Auth	4.00%	12/1/2050	A+			3,500		3,948,630
Chicago Trans Auth	4.00%	12/1/2055	A+			3,000		3,371,550
Chicago Trans Auth	5.00%	12/1/2055	A+			1,750		2,106,020
CT Airport Auth - Bradley Arpt AMT	4.00%	7/1/2049	BBB			5,310		5,807,016
Denver City & Co Arpt AMT	5.50%	11/15/2025	A			3,410		3,868,918
Denver RTD - Eagle P3	3.00%	7/15/2037	Baa2			2,975		3,164,151
E470 Pub Hwy Auth (NPFGC)(FGIC)	Zero Coupon	9/1/2031	A			20,000		16,916,600
Foothill / Eastern Corridor Toll Rd	Zero Coupon	1/15/2033	A-			4,500		3,284,100
Foothill / Eastern Corridor Toll Rd	5.75%	1/15/2046	A-			1,000		1,125,190
Foothill / Eastern Corridor Toll Rd	6.00%	1/15/2049	A-			5,000		5,873,300
Foothill / Eastern Corridor Toll Rd	6.00%	1/15/2053	A-			6,915		8,122,774
Foothill / Eastern Corridor Toll Rd	6.50%	1/15/2043	BBB+			2,000		2,293,040
Hampton Rds Trans	4.00%	7/1/2060	AA			5,000		5,938,950
Houston Arpt - Continental Airlines AMT	4.75%	7/1/2024	Ba3			5,000		5,201,250
Houston Arpt - United Airlines AMT	5.00%	7/15/2028	B			3,500		3,965,990
MD EDC - Port Covington	4.00%	9/1/2040	NR			1,000		1,051,520
MD EDC - Port Covington	4.00%	9/1/2050	NR			4,000		4,122,760
MD EDC - Ports America Chesapeake AMT	5.00%	6/1/2044	Baa3			250		281,838
MD EDC - Ports America Chesapeake AMT	5.00%	6/1/2049	Baa3			750		840,323
MI Strategic Fund - I-75 AMT (AGM)	4.50%	6/30/2048	AA			3,000		3,559,200
MTA NY	4.00%	2/1/2022	NR			2,250		2,296,215
MTA NY	4.00%	11/15/2045	A3			2,500		2,777,375
MTA NY	5.00%	5/15/2022	NR			5,100		5,303,745
MTA NY	5.00%	11/15/2048	A3			7,420		8,870,536
MTA NY	5.00%	11/15/2050	A3			6,125		7,311,167
MTA NY	5.25%	11/15/2044	A3			10,000		11,100,200
MTA NY	5.25%	11/15/2055	A3			14,210		17,347,000
NJ Trans Trust Fund	4.00%	6/15/2045	Baa1			3,350		3,749,487
NJ Trans Trust Fund	4.00%	6/15/2050	Baa1			7,690		8,538,976
NJ Trans Trust Fund	5.00%	6/15/2045	Baa1			5,000		6,092,050
NJ Trans Trust Fund	5.00%	6/15/2050	Baa1			2,750		3,324,337
North TX Twy Auth	4.25%	1/1/2049	A			5,525		6,341,263
NY Trans Dev Corp - Delta AMT	4.00%	1/1/2036	Baa3			9,305		10,198,931
NY Trans Dev Corp - Delta AMT	4.375%	10/1/2045	Baa3			15,000		17,263,350

92 See Notes to Schedule of Investments.

Schedule of Investments (unaudited)(continued)

HIGH YIELD MUNICIPAL BOND FUND December 31, 2020

Investments	Interest Rate	Maturity Date	Credit Rating: S&P or Moody’s	Principal Amount (000)		Fair Value
Transportation (continued)
NY Trans Dev Corp - Delta AMT	5.00%	1/1/2024	Baa3	$	6,300	$	6,957,720
NY Trans Dev Corp - Delta AMT	5.00%	1/1/2036	Baa3		1,195		1,399,990
NY Trans Dev Corp - Delta AMT	5.00%	10/1/2040	Baa3		15,000		18,383,100
NY Trans Dev Corp - JFK IAT	4.00%	12/1/2039	Baa1		1,500		1,778,205
NY Trans Dev Corp - JFK IAT	4.00%	12/1/2041	Baa1		1,000		1,171,500
NY Trans Dev Corp - JFK IAT	5.00%	12/1/2035	Baa1		1,000		1,289,420
NY Trans Dev Corp - JFK IAT	5.00%	12/1/2037	Baa1		1,000		1,282,800
NY Trans Dev Corp - LaGuardia Airport AMT	5.25%	1/1/2050	Baa3		14,470		15,931,325
PA Tpk Commn	4.00%	12/1/2049	A3		3,500		3,936,485
PA Tpk Commn	5.00%	12/1/2044	A3		4,500		5,585,220
Port Auth NY & NJ AMT	4.00%	11/1/2059	Aa3		1,000		1,138,900
Port Auth NY & NJ AMT	4.00%	7/15/2060	Aa3		10,000		11,488,900
PR Hwy & Trans Auth(b)	5.00%	7/1/2020	NR		6,035		2,112,250
PR Hwy & Trans Auth(b)	5.00%	7/1/2022	C		1,545		544,613
PR Hwy & Trans Auth(b)	5.00%	7/1/2028	C		1,015		115,456
Reno - ReTRAC-Reno Trans†	Zero Coupon	7/1/2058	NR		55,000		8,292,350
TX Surface Trans Corp - I-635	4.00%	6/30/2038	Baa2		1,050		1,239,126
TX Surface Trans Corp - I-635	4.00%	12/31/2038	Baa2		1,375		1,618,856
TX Surface Trans Corp - I-635	4.00%	6/30/2039	Baa2		1,335		1,570,040
TX Surface Trans Corp - I-635	4.00%	6/30/2040	Baa2		1,125		1,318,489
TX Surface Trans Corp - NTE 3C AMT	5.00%	6/30/2058	Baa3		4,200		5,040,882
TX Trans Comm - Hwy 249	Zero Coupon	8/1/2036	Baa3		1,050		607,058
TX Trans Comm - Hwy 249	Zero Coupon	8/1/2040	Baa3		1,100		508,310
TX Trans Comm - Hwy 249	Zero Coupon	8/1/2048	Baa3		1,000		298,100
TX Trans Comm - Hwy 249	5.00%	8/1/2057	Baa3		2,375		2,769,796
VA Small Bus Fing - Elizabeth River AMT	6.00%	1/1/2037	BBB-		1,230		1,311,377
Total							322,655,186
Utilities 7.77%
Burke Co Dev - Oglethorpe Power	4.125%	11/1/2045	BBB+		6,085		6,917,245
Burke Co Dev - Oglethorpe Power	4.125%	11/1/2045	BBB+		15,640		17,779,083
CA Poll Ctl - Poseidon Res†	5.00%	11/21/2045	Baa3		2,250		2,672,978
Campbell Co Solid Wste - Basin Elec	3.625%	7/15/2039	A		12,345		13,549,378
Central Plains - Goldman Sachs	5.00%	9/1/2042	BBB+		5,000		7,330,200
Charlotte Co IDA - Babcock Ranch AMT†	5.00%	10/1/2034	NR		1,000		1,138,770
Charlotte Co IDA - Babcock Ranch AMT†	5.00%	10/1/2049	NR		5,500		6,148,395

See Notes to Schedule of Investments. 93

Schedule of Investments (unaudited)(continued)

HIGH YIELD MUNICIPAL BOND FUND December 31, 2020

Investments	Interest Rate	Maturity Date	Credit Rating: S&P or Moody’s		Principal Amount (000)		Fair Value
Utilities (continued)
Compton Water	6.00%	8/1/2039	NR		$	3,710	$	3,722,688
GA Muni Elec Auth - MEAG	4.00%	1/1/2049	BBB+			10,000		11,261,400
GA Muni Elec Auth - MEAG	5.00%	1/1/2048	BBB+			2,000		2,421,860
GA Muni Elec Auth - MEAG	5.00%	1/1/2059	BBB+			7,300		8,729,413
GA Muni Elec Auth - MEAG	5.00%	1/1/2063	A			2,400		2,888,352
Guam Waterworks Auth	5.00%	1/1/2050	A-			2,250		2,796,593
HI Dept Budget - Hawaiian Electric	3.20%	7/1/2039	Baa2			15,765		16,502,644
HI Dept Budget - Hawaiian Electric AMT	4.00%	3/1/2037	Baa2			4,475		4,852,108
Jefferson Co Sewer	Zero Coupon	10/1/2039	BBB			5,000		5,094,750
Jefferson Co Sewer	Zero Coupon	10/1/2046	BBB			5,445		5,512,409
Jefferson Co Sewer	6.00%	10/1/2042	BBB			7,175		8,367,700
Jefferson Co Sewer	6.50%	10/1/2053	BBB			26,800		31,577,368
Jefferson Co Sewer (AGM)	Zero Coupon	10/1/2028	AA			4,035		3,016,445
Jefferson Co Sewer (AGM)	5.00%	10/1/2044	AA			5,070		5,601,032
Maricopa Co Poll Cntrl - El Paso Elec	3.60%	2/1/2040	Baa2			5,355		5,940,998
Maricopa Co Poll Cntrl - El Paso Elec	3.60%	4/1/2040	Baa2			3,115		3,454,348
Moraine Ohio Solid Waste Disp Escrow AMT	Zero Coupon	7/1/2014	NR			525		53	(f)
PR Aqueduct & Swr Auth	4.25%	7/1/2025	Ca			4,400		4,570,500
PR Aqueduct & Swr Auth†	5.00%	7/1/2025	NR			10,000		11,023,600
PR Aqueduct & Swr Auth†	5.00%	7/1/2030	NR			15,000		17,645,850
PR Aqueduct & Swr Auth	5.00%	7/1/2033	Ca			5,570		5,855,462
PR Aqueduct & Swr Auth†	5.00%	7/1/2035	NR			15,000		17,308,350
PR Aqueduct & Swr Auth†	5.00%	7/1/2047	NR			20,000		22,551,200
PR Aqueduct & Swr Auth	5.125%	7/1/2037	Ca			3,720		3,915,300
PR Aqueduct & Swr Auth	6.00%	7/1/2047	Ca			3,315		3,534,619
PR Elec Pwr Auth(b)	5.00%	7/1/2042	D	(d)		4,975		4,029,750
PR Elec Pwr Auth(b)	5.05%	7/1/2042	D	(d)		3,425		2,774,250
PR Elec Pwr Auth(b)	5.25%	7/1/2024	D	(d)		7,000		5,687,500
PR Elec Pwr Auth(b)	5.50%	7/1/2038	D	(d)		1,530		1,246,950
Prichard Wtr & Swr	4.00%	11/1/2044	BBB+			1,980		2,218,273
Total								279,637,814
Total Municipal Bonds (cost $3,331,900,780)								3,538,229,186

94 See Notes to Schedule of Investments.

Schedule of Investments (unaudited)(continued)

HIGH YIELD MUNICIPAL BOND FUND December 31, 2020

				Credit
		Interest	Final	Rating:	Principal
	Interest	Rate Reset	Maturity	S&P or	Amount		Fair
Investments	Rate#	Date(g)	Date	Moody’s	(000)		Value
SHORT-TERM INVESTMENTS 0.38%
Variable Rate Demand Notes 0.38%
Health Care 0.09%
NYC Muni Water	0.10%	1/4/2021	6/15/2045	AAA	$	3,000	$	3,000,000
Utilities 0.29%
NYC Muni Water	0.08%	1/4/2021	6/15/2050	AA+		2,115		2,115,000
NYC Muni Water	0.10%	1/4/2021	6/15/2045	AAA		3,550		3,550,000
NYC Muni Water	0.11%	1/4/2021	6/15/2049	AA+		2,250		2,250,000
NYC Muni Water	0.11%	1/4/2021	6/15/2049	AA+		2,550		2,550,000
Total								10,465,000
Total Short-Term Investments (cost $13,465,000)								13,465,000
Total Investments in Securities 98.66% (cost $3,345,365,780)								3,551,694,186
Cash and Other Assets in Excess of Liabilities 1.34%								48,348,463
Net Assets 100.00%							$	3,600,042,649

AGM	Insured by - Assured Guaranty Municipal Corporation.
AMBAC	Insured by - AMBAC Assurance Corporation.
AMT	Income from the security may be subject to Alternative Minimum Tax.
BAM	Insured by - Build America Mutual.
COP	Certificates of Participation.
FGIC	Insured by - Financial Guaranty Insurance Company.
GTD	Guaranteed.
NPFGC	Insured by - National Public Finance Guarantee Corporation.
NR	Not Rated.
SIFMA	Insured by - Securities Industry and Financial Markets Association.
TCRS	Transferable Custodial Receipt.
TRIPS	Tax Refund Intercept Programs.

†	Security was purchased pursuant to Rule 144A under the Securities Act of 1933 and, unless registered under such Act or exempted from registration, may only be resold to qualified institutional buyers. At December 31, 2020, the total value of Rule 144A securities was $815,657,289, which represents 22.66% of net assets.
#	Variable rate security. The interest rate represents the rate in effect at December 31, 2020.
(a)	Variable Rate is Fixed to Float: Rate remains fixed or at Zero Coupon until designated future date.
(b)	Defaulted (non-income producing security).
(c)	Level 3 Investment as described in Note 2(b) in the Notes to Financials. Security valued utilizing third party pricing information without adjustment. Such valuations are based on unobservable inputs. A significant change in third party information could result in a significantly lower or higher value of such Level 3 investments.
(d)	This investment has been rated by Fitch IBCA.
(e)	Stub Rights issued in connection with a plan of reorganization.
(f)	Level 3 Investment as described in Note 2(b) in the Notes to Financials. Security fair valued by the Pricing Committee.
(g)	The interest rate reset date shown represents the date in which the Fund has the right to sell a Variable Rate Demand Note (“VRDN”) back to the issuer for Principal Amount. The interest rate on the VRDN is generally reset daily based on the SIFMA Municipal Swap Index.

See Notes to Schedule of Investments. 95

Schedule of Investments (unaudited)(concluded)

HIGH YIELD MUNICIPAL BOND FUND December 31, 2020

The following is a summary of the inputs used as of December 31, 2020 in valuing the Fund’s investments carried at fair value⁽¹⁾:

Investment Type(2)	Level 1		Level 2		Level 3		Total
Long-Term Investments
Municipal Bonds
Corporate-Backed	$	-	$	510,559,568	$	12,523,200	$	523,082,768
Education		-		196,957,827		10,803,902		207,761,729
General Obligation		-		298,983,164		822,500		299,805,664
Health Care		-		681,868,709		23,286,210		705,154,919
Other Revenue		-		210,428,710		10,563,051		220,991,761
Special Tax		-		157,293,733		5,619,316		162,913,049
Utilities		-		279,637,761		53		279,637,814
Remaining Industries		-		1,138,881,482		-		1,138,881,482
Short-Term Investments
Variable Rate Demand Notes		-		13,465,000		-		13,465,000
Total	$	-	$	3,488,075,954	$	63,618,232	$	3,551,694,186

(1)	Refer to Note 2(b) for a description of fair value measurements and the three-tier hierarchy of inputs.
(2)	See Schedule of Investments for fair values in each industry. The table above is presented by Investment Type. Industries are presented within an Investment Type should such Investment Type include securities classified as two or more levels within the three-tier fair value hierarchy. Each Level 3 security is identified on the Schedule of Investments along with the valuation technique utilized.

A reconciliation of Level 3 investments is presented when the Fund has a material amount of Level 3 investments at the beginning or end of the period in relation to the Fund’s net assets.

The following is a reconciliation of investments with unobservable inputs (Level 3) that were used in determining fair value:

Investment Type	Municipal Bonds
Balance as of October 1, 2020	$	60,200,221
Accrued Discounts (Premiums)		(24,117	)
Realized Gain (Loss)		-
Change in Unrealized Appreciation (Depreciation)		3,721,106
Purchases		-
Sales		-
Transfers into Level 3		22,129,001
Transfers out of Level 3		(22,407,979	)
Balance as of December 31, 2020	$	63,618,232
Change in unrealized appreciation/depreciation for the period ended December 31, 2020, related to Level 3 investments held at December 31, 2020	$	3,721,106

96 See Notes to Schedule of Investments.

Schedule of Investments (unaudited)

SHORT DURATION HIGH YIELD MUNICIPAL BOND FUND December 31, 2020

Investments	Interest Rate		Maturity Date	Credit Rating: S&P or Moody’s	Principal Amount (000)		Fair Value
MUNICIPAL BONDS 98.26%
Corporate-Backed 23.21%
AL IDA - Office Max Rmkt AMT	6.45%	#(a)	12/1/2023	B1	$	675	$	675,142
AL IDA - Office Max Rmkt AMT	6.45%	#(a)	12/1/2023	B1		1,425		1,425,299
Allegheny Co IDA - US Steel	5.125%		5/1/2030	B-		6,390		6,373,258
Bucks Cnty IDA - Waste Mgmt AMT	2.75%	#(a)	12/1/2022	A-		1,000		1,043,780
CA Muni Fin - United Airlines AMT	4.00%		7/15/2029	B+		4,625		5,032,416
CA Muni Fin - Waste Mgmt AMT	0.70%	#(a)	12/1/2044	A-		2,500		2,531,100
Downtown Doral CDD†	3.875%		12/15/2023	NR		155		160,067
Downtown Doral CDD†	4.25%		12/15/2028	NR		250		271,818
FL DFC - Waste Pro AMT†	5.00%		5/1/2029	NR		3,065		3,330,153
FL DFC - Waste Pro AMT†	5.00%	#(a)	8/1/2029	NR		2,170		2,267,476
Greater Orlando Aviation - Jet Blue AMT	5.00%		11/15/2026	NR		100		104,603
Hoover IDA - US Steel AMT	6.375%	#(a)	11/1/2050	B-		2,000		2,165,980
IA Fin Auth - Alcoa	4.75%		8/1/2042	BB+		2,380		2,459,778
IA Fin Auth - Iowa Fertilizer Co	3.125%		12/1/2022	BB-		1,500		1,536,480
IA Fin Auth - Iowa Fertilizer Co	5.25%		12/1/2025	BB-		9,535		10,405,641
IA Fin Auth - Iowa Fertilizer Co†	5.875%		12/1/2027	BB-		200		206,350
IL Fin Auth - Navistar†	4.75%	#(a)	10/15/2040	B3		6,000		6,408,960
IN Fin Auth - OVEC	3.00%		11/1/2030	Ba1		2,410		2,578,531
IN Fin Auth - OVEC	3.00%		11/1/2030	Ba1		500		534,965
Int Falls MN - Office Max	5.50%		4/1/2023	B1		1,270		1,265,847
LA Env Facs - Westlake Chem	3.50%		11/1/2032	Baa2		2,595		2,878,737
LA St John Parish - Marathon Oil	2.125%	#(a)	6/1/2037	BBB-		550		564,102
LA St John Parish - Marathon Oil	2.20%	#(a)	6/1/2037	BBB-		5,435		5,614,409
LA St John Parish - Marathon Oil	2.375%	#(a)	6/1/2037	BBB-		425		442,927
Love Field Arpt - Southwest Airlines AMT	5.00%		11/1/2022	Baa1		285		306,877
Matagorda Co Nav Dist - AEP TX Central	2.60%		11/1/2029	A-		725		790,257
Matagorda Co Nav Dist - AEP TX Central (AMBAC)	4.40%		5/1/2030	A-		265		329,700
MI Strategic Fd - Waste Mgmt AMT	2.85%	#(a)	8/1/2027	A-		1,000		1,012,660
Mission Econ Dev Corp - Natgasoline AMT†	4.625%		10/1/2031	BB-		5,625		5,981,400
MSR Energy Auth - Citi	6.125%		11/1/2029	BBB+		360		460,919
Nez Perce Co Poll Ctl - Potlatch	2.75%		10/1/2024	BBB-		2,835		2,931,929
NH Bus Fin Auth - United Illuminating	2.80%	#(a)	10/1/2033	A-		1,000		1,052,930
NH Fin Auth - Casella Waste AMT†	2.95%	#(a)	4/1/2029	B		2,300		2,374,842
NH National Fin Auth - Covanta AMT†	4.00%		11/1/2027	B1		1,525		1,585,055

See Notes to Schedule of Investments. 97

Schedule of Investments (unaudited)(continued)

SHORT DURATION HIGH YIELD MUNICIPAL BOND FUND December 31, 2020

Investments	Interest Rate		Maturity Date	Credit Rating: S&P or Moody’s	Principal Amount (000)		Fair Value
Corporate-Backed (continued)
Niagara Area Dev Corp - Covanta†	3.50%		11/1/2024	B1	$	2,100	$	2,164,008
NJ EDA - Continental Airlines AMT	5.125%		9/15/2023	Ba3		5,965		6,322,184
NJ EDA - Continental Airlines AMT	5.25%		9/15/2029	Ba3		1,750		1,852,638
NJ EDA - Goethals Brdg AMT	5.25%		1/1/2025	A2		285		321,822
NTL Fin Auth - Waste Mgmt AMT	2.15%	#(a)	7/1/2027	A-		3,160		3,323,246
NY Env Facs - Casella Waste AMT	2.75%	#(a)	9/1/2050	B		1,500		1,553,085
NY Env Facs - Casella Waste AMT†	2.875%	#(a)	12/1/2044	B		1,500		1,543,455
NY Env Facs - Casella Waste AMT†	3.125%	#(a)	12/1/2044	B		3,000		3,153,180
NY Liberty Dev Corp - 3 WTC†	5.15%		11/15/2034	NR		1,500		1,620,675
NY Trans Dev Corp - American Airlines AMT	5.00%		8/1/2021	B-		4,180		4,252,356
NY Trans Dev Corp - American Airlines AMT	5.00%		8/1/2026	B-		1,000		1,016,450
NY Trans Dev Corp - American Airlines AMT	5.25%		8/1/2031	B-		1,650		1,867,322
NY Trans Dev Corp - American Airlines AMT	5.375%		8/1/2036	B-		1,000		1,137,410
NYC IDA - TRIPS AMT	5.00%		7/1/2022	BBB+		1,050		1,116,539
NYC IDA - TRIPS AMT	5.00%		7/1/2028	BBB+		1,000		1,048,900
OH Air Dev Auth - AEP AMT	2.60%	#(a)	6/1/2041	BBB+		2,500		2,654,775
OH Air Dev Auth - OVEC	2.875%		2/1/2026	Ba1		700		733,635
OH Air Dev Auth - OVEC	3.25%		9/1/2029	Ba1		2,750		2,999,177
OH Air Quality - Pratt Paper AMT†	3.75%		1/15/2028	NR		400		441,576
OH St Wtr Dev Auth - US Steel	6.60%		5/1/2029	B-		200		203,220
Parish of St James - Nustar Logistics†	5.85%	#(a)	8/1/2041	BB-		2,500		2,794,100
Parish of St James - Nustar Logistics†	6.10%	#(a)	6/1/2038	BB-		1,500		1,850,850
Phenix City - Meadwestvaco AMT	4.125%		5/15/2035	BBB		1,000		1,038,430
Polk Co IDA - Mineral Development AMT†	5.875%		1/1/2033	NR		2,375		2,522,962
Port Beaumont Nav Dis - Jefferson Rail AMT†	3.625%		1/1/2035	NR		1,730		1,746,331
Salem Co Poll Ctl - Chambers AMT	5.00%		12/1/2023	BBB		4,970		5,247,077
St Charles Parish - Valero Energy	4.00%	#(a)	12/1/2040	BBB		550		571,307
Tuscaloosa IDA - Hunt Refining†	4.50%		5/1/2032	NR		5,930		6,645,514
Valparaiso Facs - Pratt Paper AMT	5.875%		1/1/2024	NR		230		245,955
Warren Co - Intl Paper	2.90%	#(a)	9/1/2032	BBB		750		799,065
Whiting Env Facs - BP AMT	5.00%	#(a)	11/1/2045	A1		1,170		1,269,626
WI PFA - American Dream†	6.50%		12/1/2037	NR		2,000		1,787,140

98 See Notes to Schedule of Investments.

Schedule of Investments (unaudited)(continued)

SHORT DURATION HIGH YIELD MUNICIPAL BOND FUND December 31, 2020

Investments	Interest Rate		Maturity Date	Credit Rating: S&P or Moody’s		Principal Amount (000)		Fair Value
Corporate-Backed (continued)
WI PFA - Celanese AMT	4.30%		11/1/2030	BBB-		$	2,115	$	2,365,056
WI PFA - Celanese AMT	5.00%		1/1/2024	BBB-			1,500		1,665,450
WI PFA - Celanese AMT	5.00%		12/1/2025	BBB-			2,490		2,925,152
WI PFA - TRIPS AMT	5.00%		7/1/2022	BBB+			240		250,531
WI PFA - TRIPS AMT	5.00%		7/1/2022	BBB+			230		238,788
WI Pub Fin Auth Solid - Waste Mgmt AMT	2.00%	#(a)	7/1/2029	A-			1,500		1,508,250
Total									151,901,625
Education 4.11%
AZ Edu Fac - Odyssey Prep†	4.00%		7/1/2029	BB-			500		530,190
AZ IDA - Academy of Math & Science Proj†	5.00%		7/1/2029	BB			750		855,930
CA Muni Fin - Julian Chtr Sch†	5.00%		3/1/2025	B+			570		582,762
CA Muni Fin Auth - William Jessup U	5.00%		8/1/2024	NR			735		776,763
CA Muni Fin Auth - William Jessup U	5.00%		8/1/2027	NR			100		108,187
Cap Trust Agy - Renaissance Chtr Sch†	4.00%		6/15/2029	NR			1,000		1,051,410
Cap Trust Ed Facs - Advantage Charter Scho	4.00%		12/15/2024	Baa3			380		404,867
Cap Trust Ed Facs - Advantage Charter Scho	5.00%		12/15/2029	Baa3			400		455,428
Chester Co Hlth & Ed - Immaculata Univ	5.00%		11/1/2022	BB-	(b)		630		629,307
Chicago Brd Ed	5.00%		12/1/2022	BB-			1,500		1,583,970
Clifton Higher Ed - Intl Ldrshp Sch	4.625%		8/15/2025	NR			95		103,149
CT Ed Facs - Univ of Hartford	5.00%		7/1/2029	BBB-			925		1,102,258
FL HI Ed - Jacksonville Univ†	4.50%		6/1/2033	NR			1,500		1,567,170
Frederick Co Ed Fac - Mount St Mary’s Univ†	5.00%		9/1/2027	BB+			2,250		2,450,025
IL Fin Auth - IL Inst of Tech	5.00%		9/1/2023	Baa3			500		548,815
IL Fin Auth - IL Inst of Tech	5.00%		9/1/2024	Baa3			500		565,445
IL Fin Auth - IL Inst of Tech	5.00%		9/1/2025	Baa3			600		697,014
IL Fin Auth - IL Inst of Tech	5.00%		9/1/2026	Baa3			750		891,360
MA DFA - Emerson Clg	5.00%		1/1/2024	BBB+			500		560,160
Maricopa Co IDA - Ottawa Univ†	5.00%		10/1/2026	NR			300		313,596
Maricopa Co IDA - Ottawa Univ†	5.125%		10/1/2030	NR			425		454,134
Marietta Dev Auth - Life Univ†	5.00%		11/1/2027	Ba3			2,000		2,128,040
Multnomah Co Hsp Facs - Mirabella	5.00%		10/1/2024	NR			165		173,412
NY Dorm - Pace Univ	4.00%		5/1/2022	BBB-			245		253,477
NY Dorm - Pace Univ	5.00%		5/1/2021	BBB-			530		536,222
NY Dorm - Touro Clg	5.25%		1/1/2034	BBB-	(b)		100		107,220

See Notes to Schedule of Investments. 99

Schedule of Investments (unaudited)(continued)

SHORT DURATION HIGH YIELD MUNICIPAL BOND FUND December 31, 2020

Investments	Interest Rate		Maturity Date	Credit Rating: S&P or Moody’s	Principal Amount (000)		Fair Value
Education (continued)
NY Dorm - Yeshiva Univ	4.00%		11/1/2025	B3	$	175	$	176,647
NY Dorm - Yeshiva Univ	4.00%		11/1/2026	B3		145		146,211
NY Dorm - Yeshiva Univ	5.00%		11/1/2021	B3		685		698,714
NY Dorm - Yeshiva Univ	5.00%		9/1/2028	BBB-		595		595,761
NYC IDA - Yankee Stadium (FGIC)	2.072% (CPI Based	)#	3/1/2027	Baa1		2,425		2,481,793
OH Hgr Ed Facs - Dayton Univ (AMBAC)	2.639% (CPI Based	)#	12/1/2022	A+		2,365		2,419,419
Pima IDA - American Leadership Acad†	4.00%		6/15/2022	NR		960		972,192
Total								26,921,048
Energy 0.20%
PEFA Gas - Goldman Sachs	5.00%#(a)		9/1/2049	A3		1,065		1,305,626
Financial Services 0.73%
MA Ed Fin Auth AMT	5.00%		7/1/2025	AA		2,000		2,370,720
NJ Higher Ed Assistance Auth AMT	3.35%		12/1/2029	Aaa		2,280		2,431,711
Total								4,802,431
General Obligation 13.25%
Academical Village CCD	3.25%		5/1/2031	NR		765		795,355
Academical Village CDD	2.875%		5/1/2025	NR		1,200		1,226,328
Allentown City SD	2.375%		3/31/2021	NR		650		650,045
Atlantic City GO (BAM)	5.00%		3/1/2022	AA		245		257,248
Chicago Brd Ed	Zero Coupon		12/1/2025	BB-		1,000		873,910
Chicago Brd Ed	4.00%		12/1/2022	BB-		1,175		1,218,921
Chicago Brd Ed	4.00%		12/1/2022	BB-		1,290		1,338,220
Chicago Brd Ed	4.00%		12/1/2027	BB-		2,250		2,466,112
Chicago Brd Ed	5.00%		12/1/2031	BB-		140		140,210
Chicago Brd Ed	5.00%		12/1/2034	BB-		6,325		7,293,737
Chicago Brd Ed†	6.75%		12/1/2030	BB-		2,000		2,578,320
Chicago Brd Ed	7.00%		12/1/2026	BB-		100		122,388
Chicago Brd Ed (AGM)	5.00%		12/1/2027	AA		1,000		1,242,020
Chicago Brd Ed (AGM)	5.00%		12/1/2029	AA		1,000		1,246,070
Chicago GO	4.00%		1/1/2022	BBB+		205		212,526
Chicago GO	5.00%		1/1/2024	BBB+		1,415		1,449,597
Chicago GO	5.00%		1/1/2024	BBB+		2,930		3,185,203
Chicago GO	5.00%		1/1/2027	BBB+		1,130		1,283,556
Chicago GO	5.25%		1/1/2022	BBB+		1,330		1,374,369

100 See Notes to Schedule of Investments.

Schedule of Investments (unaudited)(continued)

SHORT DURATION HIGH YIELD MUNICIPAL BOND FUND December 31, 2020

Investments	Interest Rate		Maturity Date	Credit Rating: S&P or Moody’s		Principal Amount (000)		Fair Value
General Obligation (continued)
Chicago GO	5.25%		1/1/2028	BBB+		$	1,000	$	1,107,030
Chicago GO (NPFGC)(FGIC)	Zero Coupon		1/1/2031	BBB+			2,335		1,735,232
Cook Co GO	5.00%		11/15/2022	A+			335		360,353
Coralville GO	4.50%		6/1/2032	BB+			1,215		1,271,765
Coralville GO	5.00%		5/1/2030	A-	(b)		1,455		1,616,956
IL State GO	5.00%		7/1/2021	BBB-			835		851,291
IL State GO	5.00%		11/1/2021	BBB-			3,300		3,393,687
IL State GO	5.00%		11/1/2025	BBB-			2,000		2,278,120
IL State GO	5.00%		12/1/2026	BBB-			3,000		3,474,630
IL State GO	5.00%		11/1/2028	BBB-			2,530		2,861,632
IL State GO	5.00%		3/1/2029	BBB-			1,670		1,721,937
IL State GO	5.375%		5/1/2023	BBB-			1,500		1,630,980
IL State GO	5.50%		5/1/2030	BBB-			8,680		10,834,723
New Haven GO	5.00%		8/1/2025	BBB+			580		658,636
NJ State GO	4.00%		6/1/2031	A3			5,000		6,188,500
NJ State GO	5.00%		6/1/2026	A3			2,000		2,447,720
NYC GO	5.00%		8/1/2034	AA			2,000		2,675,180
Philadelphia Sch Dist	5.00%		9/1/2025	A2			200		238,392
PR Comwlth GO(c)	4.00%		7/1/2021	Ca			920		644,000
PR Comwlth GO(c)	5.50%		7/1/2017	NR			110		83,738
PR Comwlth GO(c)	5.50%		7/1/2019	NR			265		201,731
PR Comwlth GO(c)	8.00%		7/1/2035	Ca			4,400		3,025,000
PR Comwlth GO TCRS (AMBAC)	4.50%		7/1/2023	Ca			490		490,671
PR Elec Pwr Auth (NPFGC)(FGIC)	5.25%		7/1/2023	Baa2			2,325		2,406,654
PR Pub Bldg Auth (NPFGC)(FGIC) GTD	6.00%		7/1/2023	Baa2			1,500		1,579,170
PR Pub Bldg Auth GTD(c)	5.50%		7/1/2023	Ca			55		46,544
PR Pub Bldg Auth GTD(c)	5.50%		7/1/2027	Ca			245		212,538
Suffolk Co GO	2.00%		7/22/2021	NR			1,500		1,509,645
VT EDA - Casella Waste AMT†	4.625%	#(a)	4/1/2036	B			1,900		2,178,160
Total									86,678,750
Health Care 13.07%
Antelope Valley Hlth	5.00%		3/1/2021	Ba3			55		55,328
Atlanta Dev Auth - Georgia Proton	6.00%		1/1/2023	NR			2,000		1,292,900
Berks Co IDA - Tower Hlth	5.00%		2/1/2032	BB+			850		988,558
Berks Co IDA - Tower Hlth	5.00%	#(a)	2/1/2040	BB+			7,210		8,286,813
Blaine Sr Hsg & Hlthcare - Crest View	5.125%		7/1/2025	NR			245		241,198

See Notes to Schedule of Investments. 101

Schedule of Investments (unaudited)(continued)

SHORT DURATION HIGH YIELD MUNICIPAL BOND FUND December 31, 2020

Investments	Interest Rate	Maturity Date	Credit Rating: S&P or Moody’s		Principal Amount (000)		Fair Value
Health Care (continued)
CA Stwde - Daughters of Charity	5.50%	7/1/2022	NR		$	39	$	37,264
CA Stwde - Daughters of Charity	5.75%	7/1/2024	NR			245		232,456
CA Stwde - Loma Linda Univ Med†	5.00%	12/1/2031	BB-			1,000		1,145,040
CA Stwde - Loma Linda Univ Med Ctr†	5.00%	12/1/2025	BB-			1,200		1,388,892
CA Stwde - Loma Linda Univ Med Ctr†	5.00%	12/1/2026	BB-			1,070		1,264,280
CA Stwde - Loma Linda Univ Med Ctr†	5.00%	12/1/2028	BB-			885		1,062,655
CA Stwde - Loma Linda Univ Med Ctr	5.25%	12/1/2029	BB-			2,500		2,822,325
City of Atlantic Beach Fl - Fleet Landing	3.00%	11/15/2023	BBB	(b)		1,000		1,000,330
City of Oroville - Oroville Hsp	5.00%	4/1/2026	BB			1,255		1,388,231
City of Oroville - Oroville Hsp	5.00%	4/1/2029	BB			900		1,021,572
CT Hlth & Ed - Griffin Hosp†	5.00%	7/1/2032	BB+			740		862,751
Cuyahoga Co Hsp - Metrohealth	5.00%	2/15/2023	BBB-			1,500		1,619,100
Cuyahoga Co Hsp - Metrohealth	5.00%	2/15/2028	BBB-			500		601,390
Cuyahoga Co Hsp - Metrohealth	5.00%	2/15/2030	BBB-			1,900		2,261,076
Dev Auth of Floyd Cnty - Spires at Berry	5.50%	12/1/2028	NR			1,000		984,240
Franklin Co IDA - Menno-Haven	5.00%	12/1/2026	NR			500		569,400
Fruita CO Hlth - Canyons Hosp & Med Centr†	5.375%	1/1/2033	NR			2,000		2,270,920
Fulton Co - Canterbury Court†	3.00%	4/1/2024	NR			2,025		1,978,405
Fulton Co Med Ctr	4.00%	7/1/2028	NR			2,860		2,991,360
Glendale IDA - Beatitudes	4.00%	11/15/2027	NR			385		409,224
Glendale IDA - Beatitudes	5.00%	11/15/2023	NR			1,715		1,836,559
Guadalupe Co - Seguin City Hospital	4.00%	12/1/2026	BB			350		382,718
Guadalupe Co - Seguin City Hospital	5.00%	12/1/2022	BB			250		266,885
Guadalupe Co - Seguin City Hospital	5.00%	12/1/2023	BB			1,280		1,408,486
Howard Co Retmt Cmnty - Vantage House	5.00%	4/1/2021	NR			164		164,645
Howard Co Retmt Cmnty - Vantage House	5.00%	4/1/2021	NR			90		90,354
ID HFA - Madison Mem Hosp	5.00%	9/1/2023	BB+			1,795		1,963,209
ID HFA - Madison Mem Hosp	5.00%	9/1/2029	BB+			710		827,086
IL Fin Auth - Plymouth Place	5.00%	5/15/2025	BB+	(b)		125		131,305
IL Fin Auth - Three Crowns Park	3.25%	2/15/2022	NR			255		252,797
King Co Pub Hsp - Snoqualmie Vly Hsp	5.00%	12/1/2025	NR			100		107,435
Kirkwood IDA - Aberdeen Hts	5.00%	5/15/2022	BB	(b)		800		828,104
Kirkwood IDA - Aberdeen Hts	5.25%	5/15/2028	BB	(b)		1,135		1,290,994
KY EDFA - CommonSpirit	5.00%	8/1/2030	BBB+			1,800		2,335,374

102 See Notes to Schedule of Investments.

Schedule of Investments (unaudited)(continued)

SHORT DURATION HIGH YIELD MUNICIPAL BOND FUND December 31, 2020

Investments	Interest Rate		Maturity Date	Credit Rating: S&P or Moody’s		Principal Amount (000)		Fair Value
Health Care (continued)
Lenexa KS Hlth Facs - Lakeview Village	5.00%		5/15/2024	BB+	(b)	$	1,895	$	2,026,532
MA Hlth & Edu Facs - Trinity Hlth	0.969% (3 Mo. LIBOR * ..67 + .82%	)#	11/15/2032	AA-			1,640		1,621,206
MD Hlth & HI Ed - Adventist	5.00%		1/1/2021	Baa3			600		600,000
ME Hlth & Hi Ed - MaineGeneral Hlth	7.50%		7/1/2032	Ba3			475		486,063
Mesquite Hlth - Christian Care Ctrs	5.00%		2/15/2026	B+	(b)		1,000		971,430
Montgomery Co IDA - Einstein Hlthcare	5.00%		1/15/2022	Ba1			250		256,405
Montgomery Co IDA - Trinity Health	0.979% (3 Mo. LIBOR * .67 + .83%	)#	11/15/2034	AA-			950		930,449
Muskingum Co Hsp - Genesis Hlthcare	4.00%		2/15/2023	BB+			1,500		1,581,465
Muskingum Co Hsp - Genesis Hlthcare	5.00%		2/15/2021	BB+			275		276,078
New Hope Cultural - Wesleyan Homes	3.00%		1/1/2024	NR			230		228,503
New Hope Cultural - Wesleyan Homes	4.00%		1/1/2029	NR			470		475,776
NJ Hlth - St Peters Univ Hsp	5.00%		7/1/2021	BB+			225		228,377
NJ Hlth - St Peters Univ Hsp	5.75%		7/1/2037	BB+			810		812,487
Norfolk Redev & Hsg Auth - Harbor’s Edge	4.00%		1/1/2025	NR			1,650		1,650,247
NY Dorm - Montefiore	5.00%		9/1/2028	BBB			470		586,710
NY Dorm - Orange Reg Med Ctr†	5.00%		12/1/2022	BBB-			500		537,800
NY Dorm - Orange Reg Med Ctr†	5.00%		12/1/2022	BBB-			200		215,792
Oconee CO IDA - Westminster Pres Vlg Proj	5.50%		12/1/2028	NR			2,000		1,970,960
OK DFA - OU Med	5.00%		8/15/2029	Baa3			475		583,224
OU MedOK DFA OK DFA - OU Med	5.00%		8/15/2024	Baa3			1,400		1,578,626
Palomar Health	5.00%		11/1/2031	BBB			750		888,075
Palomar Hlth	5.00%		11/1/2036	BBB			1,500		1,741,680
Philadelphia Hsps - Temple Univ Hlth	5.00%		7/1/2023	BBB-			1,000		1,087,530
Philadelphia Hsps - Temple Univ Hlth	5.00%		7/1/2029	BBB-			4,255		4,982,307
Roanoke Co EDA - Richfield Living II	4.30%		9/1/2030	NR			770		763,955
San Buenaventura - Cmnty Mem Hlth	8.00%		12/1/2026	BB			875		929,320
San Buenaventura - Cmnty Mem Hlth	8.00%		12/1/2031	BB			670		710,749
SC Jobs EDA - Hampton Regl Med	5.00%		11/1/2021	NR			670		691,936
SC Jobs EDA - Hampton Regl Med	5.00%		11/1/2022	NR			700		750,386
SC Jobs EDA - Hampton Regl Med	5.00%		11/1/2023	NR			740		818,307
SE Port Auth - Memorial Hlth	5.00%		12/1/2022	BB-	(b)		170		178,631
SE Port Auth - Memorial Hlth	5.00%		12/1/2023	BB-	(b)		100		110,219
SE Port Auth - Memorial Hlth	5.50%		12/1/2029	BB-	(b)		1,000		1,081,680

See Notes to Schedule of Investments. 103

Schedule of Investments (unaudited)(continued)

SHORT DURATION HIGH YIELD MUNICIPAL BOND FUND December 31, 2020

Investments	Interest Rate		Maturity Date	Credit Rating: S&P or Moody’s		Principal Amount (000)		Fair Value
Health Care (continued)
Seminole Co - Legacy Pointe	5.00%		11/15/2029	NR		$	1,000	$	1,008,490	(d)
Shelby Co - Farms at Bailey Station	4.00%		12/1/2026	NR			630		620,216
Tarrant Co Cultural - Buckingham(c)	4.50%		11/15/2021	NR			695		417,000
Tulsa Co Industrial Auth - Montereau	5.00%		11/15/2023	BBB-	(b)		230		244,138
Wesley Enhanced Living & Sub Organizations	5.00%		7/1/2031	BB	(b)		200		214,996
WI Hlth & Ed - American Baptist	3.50%		8/1/2022	NR			410		411,964
WI Hlth & Ed - American Baptist	4.375%		8/1/2027	NR			225		238,559
WI Hlth Fac Auth - St. Camillus	5.00%		11/1/2026	NR			355		389,275
WI Hlth Fac Auth - St. Camillus	5.00%		11/1/2027	NR			375		413,644
WI PFA - Bancroft Neuro†	5.00%		6/1/2026	NR			470		517,804
Total									85,490,650
Housing 3.18%
CA HFA - MFH	4.00%		3/20/2033	BBB+			837		944,177
Ca Stwde - Lancer Student Hsg†	3.00%		6/1/2029	NR			750		760,875
Chicago GO	5.00%		1/1/2023	BBB+			2,000		2,122,060
MN HFA	3.00%		1/1/2051	AA+			1,250		1,381,288
Montgomery Co Hsg	4.00%		7/1/2048	Aa2			625		681,713
NC State Hsg Fin Agy	4.00%		7/1/2047	AA+			640		696,403
NJ Hsg and Mtg Fin Auth	4.50%		10/1/2048	AA			1,145		1,291,468
NYC HDC	0.95%		5/1/2027	AA+			1,610		1,611,336
NYC HDC	1.00%		11/1/2027	AA+			1,000		1,001,190
NYC HDC	1.15%		5/1/2028	AA+			1,595		1,600,136
NYC HDC	1.20%		11/1/2028	AA+			1,075		1,078,655
NYC HDC	2.85%		11/1/2031	AA+			1,215		1,285,494
NYC IDA - Yankee Stadium (FGIC)	2.012% (CPI Based	)#	3/1/2021	Baa1			655		656,061
NYS HFA L-1	1.45%		5/1/2029	Aa2			1,560		1,577,737
NYS HFA L-1	1.50%		11/1/2029	Aa2			680		688,085
NYS HFA L-2	1.25%		11/1/2028	Aa2			775		777,046
PA Hsg Fin Auth AMT	4.00%		4/1/2039	AA+			540		570,467
Phoenix IDA - ASU Std Hsg	5.00%		7/1/2026	Baa3			640		717,747
Roanoke Co EDA - Richfield Living	4.75%		9/1/2029	NR			1,335		1,368,202
Total									20,810,140

104 See Notes to Schedule of Investments.

Schedule of Investments (unaudited)(continued)

SHORT DURATION HIGH YIELD MUNICIPAL BOND FUND December 31, 2020

Investments	Interest Rate		Maturity Date	Credit Rating: S&P or Moody’s	Principal Amount (000)		Fair Value
Lease Obligations 5.93%
Aviation Station North Met Dist	4.00%		12/1/2029	NR	$	500	$	519,515
IL Sports Facs (BAM)	5.00%		6/15/2028	AA		1,000		1,248,320
IL Sports Facs (BAM)	5.00%		6/15/2029	AA		1,000		1,270,440
KY Ppty & Bldgs Commn - Proj #112	5.00%		11/1/2024	A1		1,000		1,166,900
Met Pier & Expo Auth - Mccormick Place (NPFGC)(FGIC)	Zero Coupon		6/15/2028	BBB		1,245		1,081,781
Met Pier & Expo Auth - Mccormick Place (NPFGC)(FGIC)	5.50%		6/15/2029	BBB		1,850		2,180,132
NJ EDA - Sch Facs	1.34% (MUNIPSA * 1 + 1.25%	)#	9/1/2025	Baa1		2,280		2,253,187
NJ EDA - Sch Facs	1.64% (MUNIPSA * 1 + 1.55%	)#	9/1/2027	Baa1		530		528,882
NJ EDA - Sch Facs	5.00%		3/1/2023	Baa1		2,005		2,194,673
NJ EDA - Sch Facs	5.00%		6/15/2023	Baa1		3,455		3,824,616
NJ EDA - Sch Facs	5.00%		6/15/2025	Baa1		1,680		1,976,503
NJ EDA - Sch Facs	5.00%		3/1/2030	Baa1		3,000		3,215,880
NJ EDA - Sch Facs	5.50%		9/1/2021	Baa1		320		322,528
NJ Trans Trust Fund	4.00%		12/15/2031	Baa1		3,495		4,014,846
NJ Trans Trust Fund	5.00%		12/15/2023	Baa1		1,000		1,125,110
NJ Trans Trust Fund	5.00%		12/15/2026	Baa1		3,460		4,182,310
NJ Trans Trust Fund (NPFGC)(FGIC)	Zero Coupon		12/15/2031	Baa1		1,110		883,482
PA COP	5.00%		7/1/2024	A		300		346,011
San Diego Cap Grant - Mid-Coast Corridor	1.80%		11/15/2027	A-		3,000		3,135,600
Santa Barabra COP AMT	5.00%		12/1/2027	AA		1,595		2,032,955
Santa Barbara COP AMT	5.00%		12/1/2028	AA		1,000		1,302,180
Total								38,805,851
Other Revenue 6.63%
Arlington Hi Ed Fin Corp - Newman Intl Acad	4.375%		8/15/2026	NR		1,740		1,853,692
AZ IDA - Academy of Math & Science†	4.00%		7/1/2029	BB		400		430,468
AZ IDA - Basis Schools†	5.00%		7/1/2026	BB		500		553,155
Brooklyn Arena LDC - Barclays Ctr	5.00%		7/15/2027	Ba1		2,100		2,483,544
CA Sch Fin Auth - Green Dot Charter†	5.00%		8/1/2025	BBB-		150		174,701
CA Sch Fin Auth - Green Dot Charter†	5.00%		8/1/2026	BBB-		150		178,998
CA Sch Fin Auth - Green Dot Charter†	5.00%		8/1/2027	BBB-		160		194,875

See Notes to Schedule of Investments. 105

Schedule of Investments (unaudited)(continued)

SHORT DURATION HIGH YIELD MUNICIPAL BOND FUND December 31, 2020

Investments	Interest Rate		Maturity Date	Credit Rating: S&P or Moody’s	Principal Amount (000)		Fair Value
Other Revenue (continued)
Cap Trust Agy - Franklin Academy†	4.00%		12/15/2023	NR	$	370	$	388,126
Cap Trust Agy - Franklin Academy†	4.00%		12/15/2024	NR		385		408,346
Cap Trust Agy - Franklin Academy†	4.00%		12/15/2025	NR		300		320,949
Cap Trust Agy - Franklin Academy†	5.00%		12/15/2026	NR		300		338,166
Cap Trust Agy - Franklin Academy†	5.00%		12/15/2027	NR		660		740,705
Cap Trust Agy - Franklin Academy†	5.00%		12/15/2028	NR		690		772,483
Cap Trust Agy - Franklin Academy†	5.00%		12/15/2029	NR		730		814,483
Chester Co IDA - Collegium Charter Sch	3.70%		10/15/2022	BB		680		690,526
Cleveland Co Port Auth - Playhouse Sq	5.00%		12/1/2028	BB+		1,550		1,671,442
Clifton Higher Ed - Intl Ldrshp Sch	5.25%		8/15/2026	NR		1,600		1,870,224
Clifton Higher Ed - Intl Ldrshp Sch	5.25%		8/15/2028	NR		3,040		3,519,560
FL DFC - FL Charter Foundation†	4.00%		7/15/2026	NR		655		678,665
FL DFC - Renaissance Chtr Sch†	5.00%		6/15/2025	NR		105		112,592
FL DFC - Renaissance Chtr Sch	7.00%		6/15/2026	NR		1,610		1,658,831
FL DFC - Renaissance Chtr Sch	7.625%		6/15/2041	NR		250		258,278
FL DFC - Renaissance Chtr Sch 2020†	4.00%		9/15/2030	NR		470		500,353
Florence Twn IDA - Legacy Trad Sch	5.00%		7/1/2023	BB+		130		135,399
Houston Hi Ed - Cosmos Fndtn	4.00%		2/15/2022	BBB		265		270,419
Houston Hi Ed - Cosmos Fndtn	5.875%		5/15/2021	BBB		150		153,110
Jefferson Parish Econ Dev Dist - Kenner†	4.80%		6/15/2029	NR		2,000		2,195,460
KY Public Energy Auth - Peak Energy	4.00%	#(a)	2/1/2050	A2		5,000		5,958,900
Lowndes Co Poll Ctl - Weyerhaeuser	6.80%		4/1/2022	BBB		3,320		3,568,037
Main St Nat Gas - Macquarie	5.00%		5/15/2026	A3		1,000		1,205,980
Main St Nat Gas - Ml	5.00%		3/15/2022	A2		1,050		1,107,414
Maricopa Co - Legacy Schools†	4.00%		7/1/2029	BB+		500		548,540
Maricopa Co IDA - Paradise Schools†	2.875%		7/1/2021	BB+		130		130,576
MD EDC - Chesapeake Bay Hyatt(c)	5.00%		12/1/2031	NR		1,500		900,000	(d)
Pima Co IDA - Edkey Chtr Sch†	3.50%		7/1/2025	NR		1,000		1,020,850
Salt Verde Fin Corp - Citi	5.25%		12/1/2023	A3		235		264,189
TX Muni Gas Acq & Supply - Macquarie	5.00%		12/15/2022	A3		1,715		1,863,227
TX Muni Gas Acq & Supply - Macquarie	5.00%		12/15/2027	A3		250		269,683
UT Charter Sch - Freedom Academy†	4.50%		6/15/2027	NR		2,800		3,046,064
UT Charter Sch Fin Auth - Freedom Academy†	3.625%		6/15/2021	NR		140		140,918
Total								43,391,928

106 See Notes to Schedule of Investments.

Schedule of Investments (unaudited)(continued)

SHORT DURATION HIGH YIELD MUNICIPAL BOND FUND December 31, 2020

Investments	Interest Rate		Maturity Date	Credit Rating: S&P or Moody’s	Principal Amount (000)		Fair Value
Special Tax 4.24%
Allentown Neighborhood Impt†	5.00%		5/1/2022	Ba3	$	1,060	$	1,096,867
Allentown Neighborhood Impt†	5.00%		5/1/2023	Ba3		190		201,385
Allentown Neighborhood Impt†	5.00%		5/1/2028	NR		1,820		2,032,485
Allentown Neighborhood Impt†	5.00%		5/1/2032	Ba3		2,000		2,196,080
Allentown Neighborhood Impt†	5.00%		5/1/2033	Ba3		100		110,974
Berkeley Co - Nexton Imp Dist	4.00%		11/1/2030	NR		425		463,913
Celebration Pointe CDD†	4.00%		5/1/2022	NR		175		177,410
MD Special Tax - Brunswick Crossing	3.00%		7/1/2024	NR		880		893,165
MD Special Tax - Brunswick Crossing	4.00%		7/1/2029	NR		275		297,985
North Las Vegas Special Improv Dist - Vall	3.50%		6/1/2023	NR		110		112,470
North Las Vegas Special Improv Dist - Vall	3.50%		6/1/2024	NR		120		123,485
North Las Vegas Special Improv Dist - Vall	3.75%		6/1/2025	NR		150		156,516
Nthrn Palm Bch Co Impt Dist	3.25%		8/1/2022	NR		395		401,557
Nthrn Palm Bch Co Impt Dist	5.00%		8/1/2037	NR		750		850,590
NYC IDA - Yankee Stadium (FGIC)	2.052% (CPI Based	)#	3/1/2025	Baa1		1,460		1,496,821
NYC IDA - Yankee Stadium (NPFGC)(FGIC)	2.062% (CPI Based	)#	3/1/2026	Baa1		1,200		1,232,820
Peninsula Town Center†	4.00%		9/1/2023	NR		205		207,388
Peninsula Town Center†	4.50%		9/1/2028	NR		680		716,271
River Islands PFA - CFD 2003	5.375%		9/1/2031	NR		1,000		1,072,690
Scranton RDA GTD	5.00%		11/15/2021	BB+		465		468,794
Scranton RDA GTD	5.00%		11/15/2028	BB+		255		258,524
Southlands Met Dist #1	3.00%		12/1/2022	Ba1		61		61,816
Tahoe Douglas Visitors Auth	4.00%		7/1/2027	NR		650		716,254
Tahoe Douglas Visitors Auth	5.00%		7/1/2030	NR		2,755		3,254,481
Village CDD #12	2.875%		5/1/2021	NR		165		165,777
Village CDD #12†	3.25%		5/1/2023	NR		490		500,378
Village CDD #13†	2.625%		5/1/2030	NR		1,500		1,550,580
Village CDD #13	3.55%		5/1/2039	NR		4,360		4,637,906
Village Met Dist - Avon	4.15%		12/1/2030	NR		1,270		1,345,451
West Villages Unit #7	4.00%		5/1/2024	NR		400		411,552
West Villages Unit #7	4.25%		5/1/2029	NR		500		543,780
Total								27,756,165

See Notes to Schedule of Investments. 107

Schedule of Investments (unaudited)(continued)

SHORT DURATION HIGH YIELD MUNICIPAL BOND FUND December 31, 2020

Investments	Interest Rate	Maturity Date	Credit Rating: S&P or Moody’s		Principal Amount (000)		Fair Value
Tax Revenue 2.80%
American Samoa GO†	6.50%	9/1/2028	Ba3		$	1,000	$	1,213,640
Casino Reinv Dev Auth	5.00%	11/1/2022	BBB+			350		365,145
City of Sparks - Legends at Sparks Marina†	2.50%	6/15/2024	Ba2			135		135,635
City of Sparks - Legends at Sparks Marina†	2.75%	6/15/2028	Ba2			1,300		1,310,413
Met Pier & Expo Auth - McCormick Place	5.00%	12/15/2022	BBB			1,275		1,357,199
Met Pier & Expo Auth - Mccormick Place (NPFGC)(FGIC)	5.50%	12/15/2023	NR			45		46,040
Met Pier & Expo Auth - Mccormick Place (NPFGC)(FGIC)	5.50%	12/15/2023	BBB			330		356,879
PR Corp Sales Tax	Zero Coupon	7/1/2029	NR			4,979		4,234,689
PR Corp Sales Tax	Zero Coupon	7/1/2031	NR			591		460,525
PR Corp Sales Tax	Zero Coupon	7/1/2033	NR			48		34,429
PR Corp Sales Tax	Zero Coupon	7/1/2051	NR			55		12,316
PR Corp Sales Tax	4.329%	7/1/2040	NR			27		29,326
PR Corp Sales Tax	4.50%	7/1/2034	NR			7,921		8,679,753
PR Corp Sales Tax	4.536%	7/1/2053	NR			1		1,087
PR Corp Sales Tax	4.55%	7/1/2040	NR			3		3,300
PR Corp Sales Tax	4.75%	7/1/2053	NR			19		20,928
PR Corp Sales Tax	4.784%	7/1/2058	NR			11		12,121
PR Corp Sales Tax	5.00%	7/1/2058	NR			49		54,728
Total								18,328,153
Tobacco 2.53%
Golden St Tobacco	3.50%	6/1/2036	BB-			1,845		1,882,177
Golden St Tobacco	5.30%	6/1/2037	B-			865		902,013
Nassau Co Tobacco	5.25%	6/1/2026	B-			1,540		1,556,478
PA Tob Settlement	5.00%	6/1/2023	A1			760		840,963
San Diego Tobacco Settlement	4.00%	6/1/2032	BBB			220		238,460
SD Edu Enhancement Fding Corp	5.00%	6/1/2024	A			775		854,856
Suffolk Tobacco Asset Sec Corp	5.375%	6/1/2028	NR			4,310		4,311,379
Tobacco Settlement Fin Corp NJ	3.20%	6/1/2027	BBB			1,300		1,336,257
TSASC	5.00%	6/1/2022	BBB			4,400		4,597,736
Total								16,520,319
Transportation 11.29%
CA Muni Fin - LINXS AMT	5.00%	12/31/2027	BBB-	(b)		610		757,089
CA Muni Fin - LINXS AMT	5.00%	12/31/2035	BBB-	(b)		1,000		1,204,470
Central TX Mobility Auth	5.00%	1/1/2027	A-			1,285		1,547,076
Denver RTD - Eagle P3	5.00%	7/15/2025	Baa2			800		953,456

108 See Notes to Schedule of Investments.

Schedule of Investments (unaudited)(continued)

SHORT DURATION HIGH YIELD MUNICIPAL BOND FUND December 31, 2020

Investments	Interest Rate		Maturity Date	Credit Rating: S&P or Moody’s		Principal Amount (000)		Fair Value
Transportation (continued)
Denver RTD - Eagle P3	5.00%		1/15/2028	Baa2		$	1,300	$	1,645,540
Denver RTD - Eagle P3	5.00%		1/15/2029	Baa2			600		772,122
Denver RTD - Eagle P3	5.00%		7/15/2030	Baa2			1,050		1,388,667
Houston Arpt - Continental Airlines AMT	4.75%		7/1/2024	Ba3			3,405		3,542,051
Houston Arpt - United Airlines AMT	5.00%		7/15/2027	BB-	(b)		1,000		1,124,180
Houston Arpt - United Airlines AMT	5.00%		7/15/2035	B			2,450		2,613,366
IL State GO	5.00%		11/1/2025	BBB-			2,000		2,234,420
Kansas City IDA - Kansas City Arpt AMT	5.00%		3/1/2031	A2			3,720		4,820,636
MD EDC - CNX Marine Terminals	5.75%		9/1/2025	BB-			4,500		4,544,685
MD EDC - Port Covington	3.25%		9/1/2030	NR			600		613,488
MI Strategic Fund - I-75 AMT	5.00%		6/30/2030	Baa2			720		920,030
MTA NY	4.00%		2/1/2022	NR			1,105		1,127,697
MTA NY	5.00%		9/1/2022	NR			3,005		3,150,322
MTA NY	5.00%		2/1/2023	NR			1,400		1,484,238
MTA NY	5.00%		11/15/2029	A3			2,610		3,046,601
MTA NY	5.00%		11/15/2030	A3			3,000		3,164,670
MTA NY	5.00%		11/15/2031	A3			1,620		1,824,007
MTA NY	5.00%	#(a)	11/15/2034	A3			3,400		3,713,922
MTA NY	5.00%	#(a)	11/15/2045	A3			1,400		1,702,204
NJ EDA - Port Newark AMT	5.00%		10/1/2021	Baa3			1,250		1,284,350
NY Trans Dev Corp - Delta Airlines AMT	5.00%		1/1/2028	Baa3			650		789,828
NY Trans Dev Corp - Delta AMT	4.00%		10/1/2030	Baa3			3,550		4,070,217
NY Trans Dev Corp - Delta AMT	5.00%		1/1/2022	Baa3			600		621,924
NY Trans Dev Corp - Delta AMT	5.00%		1/1/2024	Baa3			1,000		1,104,400
NY Trans Dev Corp - Delta AMT	5.00%		1/1/2030	Baa3			1,685		2,024,410
NY Trans Dev Corp - Delta AMT	5.00%		1/1/2036	Baa3			5,000		5,857,700
NY Trans Dev Corp - JFK IAT	5.00%		12/1/2026	Baa1			1,000		1,226,240
NY Trans Dev Corp - JFK IAT	5.00%		12/1/2028	Baa1			1,140		1,451,699
NY Trans Dev Corp - JFK IAT AMT	5.00%		12/1/2023	Baa1			1,400		1,561,742
NY Trans Dev Corp - LaGuardia
Airport AMT	4.00%		7/1/2032	Baa3			830		882,738
NY Trans Dev Corp - TOGA AMT	5.00%		1/1/2023	Baa3			1,000		1,078,840
Osceola Co Trans - Osceola Parkway	5.00%		10/1/2031	BBB+			1,050		1,332,523
Osceola Parkway	5.00%		10/1/2029	BBB+			450		578,844
PR Hwy & Trans Auth (AMBAC)	2.491% (CPI Based	)#	7/1/2028	C			2,230		2,109,892
Total									73,870,284

See Notes to Schedule of Investments. 109

Schedule of Investments (unaudited)(continued)

SHORT DURATION HIGH YIELD MUNICIPAL BOND FUND December 31, 2020

Investments	Interest Rate		Maturity Date	Credit Rating: S&P or Moody’s		Principal Amount (000)		Fair Value
Utilities 7.09%
Burke Co Dev - Oglethorpe Power	3.00%	#(a)	11/1/2045	A-		$	1,535	$	1,602,340
CA Poll Ctl - Poseidon Res†	5.00%		7/1/2029	Baa3			250		308,703
Charlotte County IDA - Babcock Ranch AMT†	5.00%		10/1/2029	NR			1,000		1,139,620
City of Rockport Poll Ctl - IN MI Pwr	3.05%		6/1/2025	A-			1,000		1,102,350
Clarion Co IDA - American Wtr AMT	2.45%	#(a)	12/1/2039	A+			1,000		1,097,050
CO Public Auth - ML	6.125%		11/15/2023	A2			1,440		1,581,883
DE EDA - NRG Energy	1.25%	#(a)	10/1/2040	BBB-			1,000		1,016,060
DE EDA - NRG Energy	1.25%	#(a)	10/1/2045	BBB-			1,000		1,015,470
HI Dept Budget - Hawaiian Electric AMT	3.10%		5/1/2026	Baa2			3,525		3,770,375
Jefferson Co Sewer	5.00%		10/1/2021	BBB			1,300		1,344,265
KY Muni Pwr - Prairie State Proj	3.45%	#(a)	9/1/2042	Baa1			850		909,823
Luzerne Co IDA - American Wtr AMT	2.45%	#(a)	12/1/2039	A+			1,200		1,328,172
Main St Nat Gas - Citibank	4.00%	#(a)	3/1/2050	A3			1,000		1,174,960
Main St Nat Gas - Citibank	5.00%		9/1/2025	A3			250		299,893
New Orleans Sewer	5.00%		6/1/2028	A			1,000		1,278,880
Northern CA Gas - Goldman Sachs	4.00%	#(a)	7/1/2049	A3			1,050		1,170,592
PR Aqueduct & Swr Auth	4.25%		7/1/2025	Ca			3,005		3,121,444
PR Aqueduct & Swr Auth	5.00%		7/1/2022	Ca			2,135		2,249,756
PR Aqueduct & Swr Auth†	5.00%		7/1/2030	NR			500		588,195
PR Elec Pwr Auth(c)	4.10%		7/1/2019	NR			240		188,100
PR Elec Pwr Auth(c)	4.25%		7/1/2020	NR			970		760,238
PR Elec Pwr Auth(c)	5.00%		7/1/2018	NR			50		39,750
PR Elec Pwr Auth(c)	5.25%		7/1/2027	D	(b)		2,630		2,136,875
PR Elec Pwr Auth (AGM)	5.00%		7/1/2024	AA			145		147,877
PR Elec Pwr Auth (NPFGC)(FGIC)	5.00%		7/1/2021	Baa2			100		100,474
Prichard Wtr & Swr	2.25%		11/1/2027	BBB+			420		442,252
Prichard Wtr & Swr	2.375%		11/1/2028	BBB+			1,305		1,384,566
SC Pub Service Auth - Santee Cooper	5.00%		12/1/2031	A			1,000		1,361,280
SE AL Gas Dist - Goldman Sachs	4.00%	#(a)	4/1/2049	A3			1,530		1,688,477
TEAC - Goldman Sachs	5.625%		9/1/2026	BBB	(b)		5,405		6,668,148
TX Muni Gas Acq & Supply - Macquarie	5.00%		12/15/2029	A3			1,815		1,949,001
WV EDA - Appalachian Pwr	2.625%	#(a)	12/1/2042	A-			750		773,528
WV EDA - Wheeling Pwr AMT	3.00%	#(a)	6/1/2037	A-			2,600		2,674,698
Total									46,415,095
Total Municipal Bonds (cost $618,782,227)									642,998,065

110 See Notes to Schedule of Investments.

Schedule of Investments (unaudited)(continued)

SHORT DURATION HIGH YIELD MUNICIPAL BOND FUND December 31, 2020

Investments	Interest Rate#	Interest Rate Reset Date(e)	Final Maturity Date	Credit Rating: S&P or Moody’s	Principal Amount (000)		Fair Value
SHORT-TERM INVESTMENT 0.35%
Variable Rate Demand Notes 0.35%
Health Care
NYC Muni Water (cost $2,295,000)	0.10%	1/4/2021	6/15/2045	AAA	$	2,295	$	2,295,000
Total Investments in Securities 98.61% (cost $621,077,227)								645,293,065
Cash and Other Assets in Excess of Liabilities(f) 1.39%								9,075,862
Net Assets 100.00%							$	654,368,927

AGM	Insured by - Assured Guaranty Municipal Corporation.
AMBAC	Insured by - AMBAC Assurance Corporation.
AMT	Income from the security may be subject to Alternative Minimum Tax.
BAM	Insured by - Build America Mutual.
COP	Certificates of Participation.
CPI	Consumer Price Index: Rate fluctuate based on CPI.
FGIC	Insured by - Financial Guaranty Insurance Company.
GTD	Guaranteed.
LIBOR	London Interbank Offered Rate.
MUNIPSA	SIFMA Municipal Swap Index Yield.
NPFGC	Insured by - National Public Finance Guarantee Corporation.
NR	Not Rated.
SIFMA	Insured by - Securities Industry and Financial Markets Association.
TCRS	Transferable Custodial Receipt.
TRIPS	Tax Refund Intercept Programs.

#	Variable rate security. The interest rate represents the rate in effect at December 31, 2020.
†	Security was purchased pursuant to Rule 144A under the Securities Act of 1933 and, unless registered under such Act or exempted from registration, may only be resold to qualified institutional buyers. At December 31, 2020, the total value of Rule 144A securities was $103,698,552, which represents 15.85% of net assets.
(a)	Variable Rate is Fixed to Float: Rate remains fixed or at Zero Coupon until designated future date.
(b)	This investment has been rated by Fitch IBCA.
(c)	Defaulted (non-income producing security).
(d)	Level 3 Investment as described in Note 2(b) in the Notes to Financials. Security valued utilizing third party pricing information without adjustment. Such valuations are based on unobservable inputs. A significant change in third party information could result in a significantly lower or higher value of such Level 3 investments.
(e)	The interest rate reset date shown represents the date in which the Fund has the right to sell a Variable Rate Demand Note (“VRDN”) back to the issuer for Principal Amount. The interest rate on the VRDN is generally reset daily based on the SIFMA Municipal Swap Index.
(f)	Cash and Other Assets in Excess of Liabilities include net unrealized depreciation on futures contracts as follows:

See Notes to Schedule of Investments. 111

Schedule of Investments (unaudited)(concluded)

SHORT DURATION HIGH YIELD MUNICIPAL BOND FUND December 31, 2020

Open Futures Contracts at December 31, 2020:

Type	Expiration	Contracts	Position	Notional Amount			Notional Value			Unrealized Depreciation
U.S. 10-Year Treasury Note	March 2021	108	Short		$(14,890,879	)		$(14,912,437	)		$(21,558	)

The following is a summary of the inputs used as of December 31, 2020 in valuing the Fund’s investments carried at fair value⁽¹⁾:

Investment Type(2)	Level 1			Level 2		Level 3		Total
Long-Term Investments
Municipal Bonds
Health Care	$	-		$	84,482,160	$	1,008,490	$	85,490,650
Other Revenue		-			42,491,928		900,000		43,391,928
Remaining Industries		-			514,115,487		-		514,115,487
Short-Term Investment
Variable Rate Demand Notes		-			2,295,000		-		2,295,000
Total	$	-		$	643,384,575	$	1,908,490	$	645,293,065
Other Financial Instruments
Futures Contracts
Assets	$	-		$	-	$	-	$	-
Liabilities		(21,558	)		-		-		(21,558	)
Total	$	(21,558	)	$	-	$	-	$	(21,558	)

(1)	Refer to Note 2(b) for a description of fair value measurements and the three-tier hierarchy of inputs.
(2)	See Schedule of Investments for fair values in each industry. The table above is presented by Investment Type. Industries are presented within an Investment Type should such Investment Type include securities classified as two or more levels within the three-tier fair value hierarchy. Each Level 3 security is identified on the Schedule of Investments along with the valuation technique utilized.

A reconciliation of Level 3 investments is presented when the fund has a material amount of Level 3 investments at the beginning or end of the period in relation to the Fund’s net assets.

The following is a reconciliation of investments with unobservable inputs (Level 3) that were used in determining fair value:

Investment Type	Municipal Bonds
Balance as of October 1, 2020	$	7,246,256
Accrued Discounts (Premiums)		(1,722	)
Realized Gain (Loss)		(2,632	)
Change in Unrealized Appreciation (Depreciation)		20,004
Purchases		-
Sales		(434,789	)
Transfers into Level 3		-
Transfers out of Level 3		(4,918,627	)
Balance as of December 31, 2020	$	1,908,490
Change in unrealized appreciation/depreciation for the period ended December 31, 2020, related to Level 3 investments held at December 31, 2020	$	27,190

112 See Notes to Schedule of Investments.

Schedule of Investments (unaudited)

CALIFORNIA TAX FREE FUND December 31, 2020

Investments	Interest Rate		Maturity Date	Credit Rating: S&P or Moody’s		Principal Amount (000)		Fair Value
MUNICIPAL BONDS 98.07%
Corporate-Backed 2.90%
CA MFA - Waste Mgmt AMT	2.40%	#(a)	10/1/2044	A-		$	5,075	$	5,639,086
CA Muni Fin - United Airlines AMT	4.00%		7/15/2029	B+			2,430		2,644,059
CA Poll Ctl - Poseidon Res AMT†	5.00%		11/21/2045	Baa3			4,410		4,659,253
CA Poll Ctl - Waste Mgmt AMT	4.30%		7/1/2040	A-			160		184,186
Long Beach Nat Gas - ML	5.00%		11/15/2029	A2			1,260		1,635,442
San Francisco Arpt - SFO Fuel AMT	5.00%		1/1/2038	A1			1,315		1,620,921
Total									16,382,947
Education 7.80%
CA Dev Auth - Culinary Institute	5.00%		7/1/2046	Baa2			1,010		1,098,607
CA Ed Fac Auth - Loyola Marymount Univ	5.00%		10/1/2048	A2			1,000		1,219,540
CA Ed Facs - ArtCenter College of Design	5.00%		12/1/2030	Baa1			525		660,193
CA Ed Facs - ArtCenter College of Design	5.00%		12/1/2044	Baa1			1,500		1,800,015
CA Ed Facs - Chapman Univ	4.00%		4/1/2047	A2			1,800		1,993,968
CA Ed Facs - Chapman Univ	5.00%		4/1/2040	A2			1,000		1,149,210
CA Ed Facs - Loyola Marymount Univ (NPFGC)(FGIC)	Zero Coupon		10/1/2029	A2			550		493,345
CA Ed Facs - Loyola Marymount Univ (NPFGC)(FGIC)	Zero Coupon		10/1/2033	A2			1,720		1,392,873
CA Ed Facs - Santa Clara Univ	5.00%		4/1/2039	Aa3			1,000		1,169,470
CA Ed Facs - Stanford Univ	5.00%		5/1/2049	AAA			3,000		4,936,440
CA Ed Facs - Univ of San Francisco	5.00%		10/1/2037	A2			1,000		1,252,780
CA Ed Facs - Univ of San Francisco	5.00%		10/1/2053	A2			2,000		2,427,800
CA Fin Auth - Biola Univ	5.00%		10/1/2029	Baa1			330		363,607
CA Infra & Econ Dev - UCSF	5.00%		5/15/2047	AA			3,325		4,089,617
CA MFA - Univ of La Verne	5.00%		6/1/2043	A3			1,035		1,233,793
CA Muni Fin - Biola Univ	5.00%		10/1/2032	Baa1			400		480,800
CA Muni Fin - Emerson Clg	5.00%		1/1/2042	BBB+			3,090		3,608,533
CA Muni Fin - Julian Chtr Sch†	5.625%		3/1/2045	B+			500		513,520
CA Muni Fin - Touro College	5.25%		1/1/2040	BBB-	(b)		1,085		1,164,031
CA Sch Fin Auth - Green Dot Schs†	5.00%		8/1/2045	BBB-			500		554,370
CA Sch Fin Auth - KIPP LA†	5.00%		7/1/2045	BBB			540		615,022
CA State Univ	4.00%		11/1/2045	Aa2			2,000		2,434,980
Ripon USD (BAM)	5.50%		8/1/2043	AA			1,000		1,239,550
Univ of CA	5.25%		5/15/2047	AA			2,000		2,488,080
Univ of CA	5.25%		5/15/2058	AA			2,500		3,170,025
University of San Diego	5.00%		10/1/2049	A1			2,000		2,496,900
Total									44,047,069

See Notes to Schedule of Investments. 113

Schedule of Investments (unaudited)(continued)

CALIFORNIA TAX FREE FUND December 31, 2020

Investments	Interest Rate	Maturity Date	Credit Rating: S&P or Moody’s	Principal Amount (000)		Fair Value
General Obligation 19.14%
Albany CA USD	4.00%	8/1/2046	Aa3	$	1,000	$	1,135,810
Anaheim USD	3.00%	8/1/2038	Aa2		3,000		3,252,300
Banning Unified Sch Dist (AGM)	5.25%	8/1/2042	AA		1,115		1,377,170
Beverly Hills USD	3.00%	8/1/2044	Aaa		2,040		2,206,546
CA St GO	4.00%	10/1/2044	Aa2		1,805		2,173,346
CA State GO	3.00%	10/1/2033	Aa2		1,250		1,431,338
CA State GO	4.00%	9/1/2035	Aa2		1,145		1,331,635
CA State GO	4.00%	11/1/2036	Aa2		1,920		2,406,682
CA State GO	4.00%	3/1/2046	Aa2		1,000		1,204,870
CA State GO	5.00%	2/1/2032	Aa2		2,000		2,100,720
CA State GO	5.00%	4/1/2032	Aa2		2,200		3,153,282
CA State GO	5.00%	2/1/2033	Aa2		1,000		1,049,580
CA State GO	5.00%	8/1/2038	Aa2		1,565		1,921,272
CA State GO	5.25%	8/1/2032	Aa2		2,500		3,029,750
CA State GO	5.25%	10/1/2032	Aa2		4,000		4,147,240
CA State GO	5.25%	4/1/2035	Aa2		3,000		3,179,730
CA State GO	5.25%	10/1/2039	Aa2		500		612,890
Carlsbad USD	3.125%	8/1/2048	Aa1		1,000		1,094,930
Centinela UHSD (BAM)	4.00%	8/1/2052	AA		1,615		1,831,022
Centinela UHSD (BAM)	5.00%	8/1/2052	AA		2,000		2,474,980
Cupertino USD	2.50%	8/1/2033	Aa1		740		800,266
Del Mar USD (BAM)	4.00%	9/1/2044	AA		1,700		1,994,627
Grossmont UHSD	5.00%	8/1/2043	Aa2		1,250		1,405,925
Grossmont UHSD (AGM)	Zero Coupon	6/1/2040	AA		2,000		870,760
Huntington Beach City SD	4.00%	8/1/2048	Aa1		1,000		1,140,290
Imperial Unified Sch Dist (BAM)	5.25%	8/1/2043	AA		2,000		2,445,920
Inglewood USD (BAM)	4.00%	8/1/2038	AA		575		664,464
Inglewood USD (BAM)	4.00%	8/1/2039	AA		1,000		1,153,550
Irvine Unified School District	4.00%	9/1/2042	Aa1		1,915		2,251,657
Irvine Unified School District	5.50%	9/1/2035	Aa1		1,060		1,411,984
Irvine USD - Spl Tax (BAM)	5.00%	9/1/2038	AA		1,000		1,146,670
Irvine USD - Spl Tax (BAM)	5.00%	9/1/2056	AA		1,000		1,178,230
Long Beach USD	3.00%	8/1/2037	Aa2		2,420		2,711,295
Los Angeles USD	4.00%	7/1/2032	Aa3		1,250		1,580,712
Los Angeles USD	4.00%	7/1/2033	Aa3		1,000		1,254,500
Los Angeles USD	4.00%	7/1/2044	Aa3		2,000		2,415,340
Marin Healthcare Dist	4.00%	8/1/2040	Aa2		1,000		1,113,960
Miracosta CCD	2.00%	8/1/2041	AAA		1,000		1,010,490

114 See Notes to Schedule of Investments.

Schedule of Investments (unaudited)(continued)

CALIFORNIA TAX FREE FUND December 31, 2020

Investments	Interest Rate	Maturity Date	Credit Rating: S&P or Moody’s	Principal Amount (000)		Fair Value
General Obligation (continued)
New Haven USD	4.00%	8/1/2044	Aa3	$	1,250	$	1,465,813
New Haven USD	4.00%	8/1/2047	Aa3		2,415		2,783,215
Newport Mesa USD	Zero Coupon	8/1/2041	Aaa		1,325		684,031
Newport-Mesa USD	Zero Coupon	8/1/2045	Aaa		2,000		864,660
North Orange CCD	2.75%	8/1/2036	AA+		2,000		2,178,860
Oceanside USD	4.00%	8/1/2048	Aa3		2,030		2,337,058
Orange USD	4.00%	8/1/2047	AA		1,000		1,170,450
Panama-Buena Vista USD (BAM)	2.625%	8/1/2037	AA		1,510		1,599,558
Perris UHSD (AGM)	3.00%	9/1/2044	AA		1,000		1,076,130
PR Comwlth GO(c)	6.00%	7/1/2039	Ca		2,000		1,532,500
San Benito HSD	Zero Coupon	8/1/2041	Aa3		1,640		833,678
San Benito HSD	Zero Coupon	8/1/2042	Aa3		1,795		871,670
San Benito HSD	Zero Coupon	8/1/2043	Aa3		2,600		1,206,686
San Diego USD	3.25%	7/1/2048	Aa2		1,000		1,099,070
San Francisco Arpt AMT	5.25%	5/1/2042	A1		1,000		1,213,780
San Francisco CCD	4.00%	6/15/2045	Aa3		1,250		1,504,025
San Francisco CCD	5.00%	6/15/2028	Aa3		1,000		1,200,570
San Gorgonio Mem Hlthcare Dist	5.00%	8/1/2032	Baa3		1,000		1,109,540
San Leandro Unified Sch Dist (BAM)	5.25%	8/1/2046	AA		1,750		2,153,865
San Leandro USD (BAM)	4.00%	8/1/2043	AA		650		762,580
San Rafael Elem Sch Dist	4.00%	8/1/2047	AA		1,000		1,152,470
San Rafael HSD	4.50%	8/1/2042	AA		1,150		1,400,493
Santa Ana USD	3.25%	8/1/2042	Aa3		500		551,035
Santa Barbara Unified Sch Dist	4.00%	8/1/2036	Aa1		750		883,470
Santa Barbara USD	4.00%	8/1/2044	Aa1		1,000		1,176,550
Santa Rita USD	2.50%	8/1/2031	AA-		1,235		1,331,935
Simi Valley GO	4.00%	8/1/2046	Aa2		1,065		1,228,605
Simi Valley USD	4.00%	8/1/2048	Aa2		600		690,756
Southwestern Community College Dist	Zero Coupon	8/1/2041	Aa2		1,100		699,182
Sweetwater UHSD (BAM)	5.00%	8/1/2027	AA		1,000		1,146,690
West Contra Costa USD	4.00%	8/1/2043	AA-		1,000		1,163,880
West Contra Costa USD	6.00%	8/1/2027	AA-		1,000		1,338,010
Total							108,076,548
Health Care 14.66%
Abag Fin Auth - Eskaton Pptys	5.00%	11/15/2035	BBB		1,000		1,054,690
Abag Fin Auth - Sharp Hlthcare	5.00%	8/1/2043	AA		1,000		1,093,410
Antelope Valley Hlth	5.25%	3/1/2036	Ba3		1,000		1,047,750

See Notes to Schedule of Investments. 115

Schedule of Investments (unaudited)(continued)

CALIFORNIA TAX FREE FUND December 31, 2020

Investments	Interest Rate	Maturity Date	Credit Rating: S&P or Moody’s		Principal Amount (000)		Fair Value
Health Care (continued)
CA Fin Auth - Standord Hlth	4.00%	8/15/2050	AA-		$	1,000	$	1,198,490
CA Hlth - Childrens Hsp Los Angeles	5.00%	11/15/2029	BBB+			1,000		1,068,940
CA Hlth - Childrens Hsp Los Angeles	5.00%	8/15/2047	BBB+			1,000		1,169,270
CA Hlth - Childrens Hsp Orange Co	4.00%	11/1/2035	AA-			570		699,823
CA Hlth - Childrens Hsp Orange Co	5.00%	11/1/2033	AA-			1,300		1,730,651
CA Hlth - Childrens Hsp Orange Co	5.00%	11/1/2034	AA-			1,200		1,594,512
CA Hlth - Childrens Hsp Orange Co	5.25%	11/1/2035	AA-			2,000		2,072,720
CA Hlth - City of Hope	4.00%	11/15/2045	A+			3,000		3,503,550
CA Hlth - CommonSpirit	4.00%	4/1/2037	BBB+			3,500		4,173,540
CA Hlth - CommonSpirit	4.00%	4/1/2044	BBB+			1,250		1,448,650
CA Hlth - CommonSpirit	4.00%	4/1/2045	BBB+			1,250		1,441,838
CA Hlth - CommonSpirit	4.00%	4/1/2049	BBB+			2,500		2,865,075
CA Hlth - Providence St. Joes Hlth	4.00%	10/1/2047	AA-			2,115		2,390,542
CA Hlth - Rady Childrens Hsp	5.50%	8/15/2033	Aa3			2,000		2,058,100
CA Hlth - Sutter Hlth	4.00%	11/15/2042	A+			1,715		1,955,906
CA Hlth Facs - Kaiser Permanente	5.00%	11/1/2047	AA-			1,000		1,574,460
CA Hlth Facs - Lucile Packard Hosp	5.00%	11/15/2056	A+			1,500		1,818,765
CA Htlh - Emante Hlth	4.00%	4/1/2037	A			1,400		1,673,378
CA Muni Fin - Caritas Affordable Hsg	4.00%	8/15/2037	A-			1,000		1,109,520
CA Muni Fin - Channing House	5.00%	5/15/2047	AA-			2,000		2,345,220
CA Muni Fin - Cmnty Med Ctrs	4.00%	2/1/2042	A-			1,165		1,286,183
CA Muni Fin - Cmnty Med Ctrs	5.00%	2/1/2040	A-			500		560,900
CA Muni Fin - Cmnty Med Ctrs	5.00%	2/1/2047	A-			2,000		2,320,100
CA Stwde - Adventist Health West	3.00%	3/1/2039	A			3,475		3,633,252
CA Stwde - American Baptist	5.00%	10/1/2045	A-	(b)		1,000		1,112,190
CA Stwde - Daughters of Charity	5.50%	7/1/2039	NR			172		163,251
CA Stwde - Henry Mayo Mem Hsp (AGM)	5.25%	10/1/2043	AA			775		871,526
CA Stwde - Huntington Memorial Hosp	4.00%	7/1/2048	A-			1,000		1,129,020
CA Stwde - John Muir Hlth	4.00%	12/1/2057	A+			1,000		1,043,980
CA Stwde - Loma Linda Univ Med Ctr	5.25%	12/1/2034	BB-			2,150		2,402,281
CA Stwde - Loma Linda Univ Med Ctr	5.50%	12/1/2054	BB-			2,200		2,433,376
CA Stwde - Loma Linda Univ Med Ctr†	5.50%	12/1/2058	BB-			1,555		1,815,369
Eisenhower Med Ctr	5.00%	7/1/2032	Baa2			1,020		1,219,634
La Verne COP - Brethren Hillcrest Homes	5.00%	5/15/2029	BBB-	(b)		635		682,650
Oroville - Oroville Hsp	5.25%	4/1/2049	BB			2,000		2,206,200
Palomar Hlth	5.00%	11/1/2036	BBB			1,250		1,451,400
Palomar Hlth	5.00%	11/1/2039	BBB			3,750		4,322,700
Palomar Hlth (AGM)	5.00%	11/1/2047	AA			4,475		5,316,032

116 See Notes to Schedule of Investments.

Schedule of Investments (unaudited)(continued)

CALIFORNIA TAX FREE FUND December 31, 2020

Investments	Interest Rate	Maturity Date	Credit Rating: S&P or Moody’s	Principal Amount (000)		Fair Value
Health Care (continued)
San Buenaventura - Cmnty Mem Hlth	8.00%	12/1/2031	BB	$	2,000	$	2,121,640
Sierra Joint CCD	4.00%	8/1/2053	Aa1		1,500		1,739,460
Washingtown Twnshp Health Care Dist	3.00%	7/1/2037	Baa2		1,440		1,499,818
Washingtown Twnshp Health Care Dist	5.00%	7/1/2032	Baa2		1,075		1,345,481
Whittier Hlth Fac - Presbyterian Intercmnty Hsp	5.75%	6/1/2029	A		1,000		1,022,860
Total							82,788,103
Housing 4.35%
CA CHA - The Arbors†	5.00%	8/1/2050	NR		1,100		1,268,003
CA Cmty Hsg - Annadel Apts†	5.00%	4/1/2049	NR		1,000		1,134,060
CA Cmty Hsg - Serenity at Larkspur†	5.00%	2/1/2050	NR		1,200		1,343,580
CA Cmty Hsg - Verdant†	5.00%	8/1/2049	NR		1,400		1,594,348
CA HFA - MFH	4.00%	3/20/2033	BBB+		2,904		3,275,398
CA HFA - MFH	4.25%	1/15/2035	BBB+		5,958		6,895,110
CA Muni Fin - Biola Univ	5.00%	10/1/2034	Baa1		1,000		1,194,430
CA Muni Fin - Caritas Affordable Hsg	5.00%	8/15/2030	A-		1,050		1,181,796
CA Muni Fin - UC Berkeley Hsg	5.00%	6/1/2050	Baa3		500		529,375
CA Stwde - CHF-Irvine LLC	5.00%	5/15/2035	Baa1		1,100		1,232,451
CA Stwde - CHF-Irvine LLC	5.125%	5/15/2031	Baa1		1,500		1,520,130
CEDA - Provident Student Hsg	5.00%	8/1/2045	Baa3		1,745		2,092,936
ESRF / Natl Charter School Loans	5.00%	11/1/2044	A		1,050		1,296,445
Total							24,558,062
Lease Obligations 2.14%
CA Pub Wks - Judicial Council	5.00%	12/1/2028	Aa3		1,000		1,044,340
CA Pub Wks - State Prisons	5.75%	10/1/2031	Aa3		2,000		2,082,060
CA Pub Wks - Various Cap Proj	4.00%	3/1/2045	Aa3		940		1,131,798
CA Pub Wks - Various Cap Proj	5.00%	4/1/2037	Aa3		1,000		1,054,000
CA Pub Wks - Various Cap Proj TCRS (BAM)	3.125%	5/1/2033	AA		1,275		1,445,467
San Bernardino COPs (AGM)	5.00%	10/1/2031	AA		860		1,113,107
Santa Barbara COPs AMT	5.00%	12/1/2036	AA		3,395		4,245,108
Total							12,115,880
Other 0.35%
CA Infra & Econ Dev - Acad Motion Pict	5.00%	11/1/2029	Aa2		1,500		1,983,555

See Notes to Schedule of Investments. 117

Schedule of Investments (unaudited)(continued)

CALIFORNIA TAX FREE FUND December 31, 2020

Investments	Interest Rate	Maturity Date	Credit Rating: S&P or Moody’s		Principal Amount (000)		Fair Value
Other Revenue 1.91%
CA Infra & Econ Dev - Acad Motion Pict	5.00%	11/1/2041	Aa2		$	1,010	$	1,112,131
CA Infra & Econ Dev - Gladstone Inst	5.25%	10/1/2034	A	(b)		2,000		2,074,080
CA Infra & Econ Dev - Museum of Nat Hist	4.00%	7/1/2050	A2			1,000		1,148,310
CA Muni Fin - Oceaa	6.75%	10/1/2028	NR			905		907,118
CA Sch Fin Auth - Aspire†	5.00%	8/1/2046	BBB			1,000		1,139,660
CA Sch Fin Auth - Green Dot Charter†	5.00%	8/1/2038	BBB-			1,000		1,194,730
CA Sch Fin Auth - KIPP LA	5.00%	7/1/2034	BBB			600		675,576
MSR Energy Auth - Citi	6.125%	11/1/2029	BBB+			1,985		2,541,455
Total								10,793,060
Pre-Refunded 0.15%
MSR Energy Auth - Citi	6.50%	11/1/2039	BBB+			520		867,355
Special Tax 3.97%
Brentwood Infra Fin Auth	5.00%	9/2/2036	NR			500		556,165
CA Reassmt Dist 15/2 Irvine	5.00%	9/2/2028	NR			1,000		1,186,710
Inland Valley Redev Agy	5.25%	9/1/2037	A-			1,325		1,491,910
Irvine CFD - Great Park	5.00%	9/1/2044	NR			500		560,575
Irvine USD - Spl Tax	5.00%	3/1/2057	NR			1,000		1,172,810
Lake Elsinore PFA	5.00%	9/1/2035	NR			920		1,047,981
Poway USD PFA (BAM)	5.00%	9/1/2035	AA+			1,770		2,126,850
River Islands PFA - CFD 2003	5.375%	9/1/2031	NR			1,045		1,120,961
River Islands PFA - CFD 2003	5.50%	9/1/2045	NR			500		531,115
River Islands PFA - Lathrop (AGM)	4.00%	9/1/2040	AA			1,000		1,180,580
River Islands PFA - Lathrop (AGM)	4.00%	9/1/2045	AA			2,000		2,324,280
River Islands PFA - Lathrop (AGM)	4.00%	9/1/2050	AA			1,400		1,617,028
Roseville CFD - Westpark	5.00%	9/1/2031	NR			1,000		1,154,480
Sacramento Conv Cntr	4.00%	6/1/2036	A2			830		919,183
San Clemente Cmnty Facs	5.00%	9/1/2040	NR			975		1,105,318
San Francisco Redev - Mission Bay North	6.75%	8/1/2041	A-			1,000		1,004,780
Temecula Vly USD Fin Auth (BAM)	5.00%	9/1/2035	AA			1,505		1,714,722
Union City Redev Agy - Tax Alloc	6.875%	12/1/2033	A+			1,510		1,601,144
Total								22,416,592
Tax Revenue 2.99%
Anaheim PFA Lease Rev (BAM)	5.00%	9/1/2035	AA			2,000		2,405,820
City of Sacramento - TOT Revs	5.00%	6/1/2048	A1			1,000		1,163,950
Invine Reassessment District No. 19	4.00%	9/2/2039	A			1,000		1,196,250

118 See Notes to Schedule of Investments.

Schedule of Investments (unaudited)(continued)

CALIFORNIA TAX FREE FUND December 31, 2020

Investments	Interest Rate	Maturity Date	Credit Rating: S&P or Moody’s	Principal Amount (000)		Fair Value
Tax Revenue (continued)
PR Corp Sales Tax	Zero Coupon	7/1/2029	NR	$	352	$	299,379
PR Corp Sales Tax	Zero Coupon	7/1/2031	NR		587		457,408
PR Corp Sales Tax	Zero Coupon	7/1/2033	NR		134		96,116
PR Corp Sales Tax	Zero Coupon	7/1/2051	NR		501		112,184
PR Corp Sales Tax	4.329%	7/1/2040	NR		3,971		4,310,282
PR Corp Sales Tax	4.329%	7/1/2040	NR		350		380,149
PR Corp Sales Tax	4.536%	7/1/2053	NR		7		7,611
PR Corp Sales Tax	4.55%	7/1/2040	NR		88		96,811
PR Corp Sales Tax	4.75%	7/1/2053	NR		296		326,032
PR Corp Sales Tax	4.784%	7/1/2058	NR		98		107,990
PR Corp Sales Tax	5.00%	7/1/2058	NR		1,139		1,272,149
Sacramento Tourism Infra Dist - Conv Centr	4.00%	6/1/2039	A2		800		875,808
San Jose Spl Tax - Conv Ctr	6.125%	5/1/2031	A+		1,000		1,009,850
Sonoma Marin Area Rail Rmkt	5.00%	3/1/2029	AA		1,500		1,584,675
Tustin CFD 06 - 1-Tust Leg/Colum Vil	5.00%	9/1/2037	A-		1,000		1,173,950
Total							16,876,414
Tobacco 6.63%
CA Stwde - Tobacco Settlement	Zero Coupon	6/1/2046	NR		8,675		1,816,979
CA Stwde - Tobacco Settlement†	Zero Coupon	6/1/2055	NR		10,000		546,500
Golden St Tobacco	Zero Coupon	6/1/2047	CCC-		2,700		594,702
Golden St Tobacco	3.50%	6/1/2036	BB-		1,550		1,581,232
Golden St Tobacco	5.00%	6/1/2029	BBB		1,000		1,231,610
Golden St Tobacco	5.00%	6/1/2034	BBB-		1,050		1,284,413
Golden St Tobacco	5.00%	6/1/2035	BB+		2,500		3,034,900
Golden St Tobacco	5.00%	6/1/2047	NR		1,250		1,296,775
Golden St Tobacco	5.00%	6/1/2047	NR		4,360		4,523,151
Golden St Tobacco	5.25%	6/1/2047	NR		1,250		1,302,050
Inland Empire Tobacco†	Zero Coupon	6/1/2057	CCC		3,000		190,800
Los Angeles Co Tobacco	Zero Coupon	6/1/2055	NR		3,000		564,060
Los Angeles Co Tobacco	4.00%	6/1/2038	A-		615		743,996
Los Angeles Co Tobacco	4.00%	6/1/2039	A-		500		602,940
Los Angeles Co Tobacco	4.00%	6/1/2040	A-		710		853,427
Los Angeles Co Tobacco	4.00%	6/1/2049	BBB+		1,500		1,743,465
Los Angeles Co Tobacco	5.00%	6/1/2049	BBB-		250		306,770
Merced Co Tobacco	5.00%	6/1/2050	NR		1,000		1,158,190

See Notes to Schedule of Investments. 119

Schedule of Investments (unaudited)(continued)

CALIFORNIA TAX FREE FUND December 31, 2020

Investments	Interest Rate		Maturity Date	Credit Rating: S&P or Moody’s		Principal Amount (000)		Fair Value
Tobacco (continued)
Nthrn CA Tobacco	Zero Coupon		6/1/2045	CCC-		$	10,000	$	2,002,200
Nthrn CA Tobacco	5.50%		6/1/2045	B-			1,115		1,120,274
San Diego Co Tobacco	Zero Coupon		6/1/2054	NR			4,800		871,920
San Diego Co Tobacco	5.00%		6/1/2038	A-			1,000		1,296,540
San Diego Co Tobacco	5.00%		6/1/2039	A-			1,000		1,292,900
San Diego Co Tobacco	5.00%		6/1/2048	BBB+			1,675		2,093,867
San Diego Tobacco Settlement	4.00%		6/1/2032	BBB			1,505		1,631,285
Silicon Valley Tobacco	Zero Coupon		6/1/2041	NR			5,000		1,595,000
Silicon Valley Tobacco	Zero Coupon		6/1/2056	NR			2,250		207,270
Sonoma Co Tobacco	4.00%		6/1/2049	BBB+			1,250		1,440,850
Sthrn CA Tobacco	Zero Coupon		6/1/2046	CCC-			2,500		504,525
Total									37,432,591
Transportation 19.29%
Alameda Corridor Trsp Auth	5.00%		10/1/2036	BBB+			1,500		1,788,015
Alameda Corridor Trsp Auth	5.00%		10/1/2037	BBB+			2,415		2,871,580
Alameda Corridor Trsp Auth (AGM)	4.00%		10/1/2037	AA			2,030		2,263,694
Alameda Corridor Trsp Auth (AGM)	5.00%		10/1/2029	AA			1,425		1,584,828
Alameda Corridor Trsp Auth (NPFGC)(FGIC)	Zero Coupon		10/1/2032	A-			750		570,578
Bay Area Toll Auth	3.00%		4/1/2054	AA-			2,500		2,658,750
Bay Area Toll Auth	4.00%		4/1/2038	AA-			2,000		2,313,140
Bay Area Toll Auth	4.00%		4/1/2042	AA-			1,635		1,874,511
CA Muni Fin - LINXS (AGM) AMT	4.00%		12/31/2047	AA			1,420		1,576,058
CA Muni Fin - LINXS AMT	4.00%		12/31/2047	BBB-	(b)		5,490		5,998,813
CA Muni Fin - LINXS AMT	5.00%		12/31/2035	BBB-	(b)		1,000		1,204,470
CA Muni Fin Auth - LINXS AMT	5.00%		12/31/2031	BBB-	(b)		1,240		1,512,961
CA Muni Fin Auth - LINXS AMT	5.00%		12/31/2043	BBB-	(b)		4,700		5,554,695
CA Muni Fin Auth - LINXS APM Proj AMT	5.00%		12/31/2047	BBB-	(b)		1,005		1,179,458
Foothill / Eastern Corridor Toll Rd	Zero Coupon		1/15/2033	A-			1,500		1,094,700
Foothill / Eastern Corridor Toll Rd	Zero Coupon		1/15/2042	A-			1,150		1,359,242
Foothill / Eastern Corridor Toll Rd	3.50%	#(a)	1/15/2053	A-			5,690		6,227,477
Foothill / Eastern Corridor Toll Rd	3.95%	#(a)	1/15/2053	A-			3,330		3,687,875
Foothill / Eastern Corridor Toll Rd	5.50%	#(a)	1/15/2053	A-			250		268,680
Foothill / Eastern Corridor Toll Rd	5.75%		1/15/2046	A-			1,835		2,064,724
Long Beach Harbor AMT	5.00%		5/15/2028	AA			1,000		1,172,230
Los Angeles Dept Arpts - LAX AMT	4.00%		5/15/2050	Aa2			1,750		2,043,737
Los Angeles Dept Arpts - LAX AMT	5.00%		5/15/2041	Aa2			1,000		1,151,920

120 See Notes to Schedule of Investments.

Schedule of Investments (unaudited)(continued)

CALIFORNIA TAX FREE FUND December 31, 2020

Investments	Interest Rate	Maturity Date	Credit Rating: S&P or Moody’s	Principal Amount (000)		Fair Value
Transportation (continued)
Los Angeles Dept Arpts - LAX AMT	5.00%	5/15/2043	Aa3	$	1,000	$	1,245,660
Los Angeles Dept Arpts - LAX AMT	5.00%	5/15/2046	Aa3		1,000		1,166,700
Los Angeles Dept Arpts - LAX AMT	5.00%	5/15/2047	Aa3		2,000		2,376,760
Los Angeles Dept Arpts - LAX AMT	5.25%	5/15/2048	Aa3		2,000		2,445,140
Los Angeles Harbor AMT	5.00%	8/1/2036	AA		1,000		1,131,810
Los Angeles International Airport AMT	5.00%	5/15/2044	Aa3		2,090		2,597,097
Orange Cnty Arpt	5.00%	7/1/2029	A+		575		721,522
Port Oakland AMT	5.125%	5/1/2031	A+		1,250		1,269,487
Riverside Co Trsp Commn	Zero Coupon	6/1/2028	A		1,000		860,290
Riverside Co Trsp Commn	5.75%	6/1/2048	A		1,500		1,628,640
Sacramento Co Arpt	5.00%	7/1/2041	A-		1,130		1,340,542
San Diego Arpt AMT	4.00%	7/1/2044	A-		5,555		6,321,257
San Diego Arpt AMT	5.00%	7/1/2027	A1		1,000		1,101,760
San Diego Arpt AMT	5.00%	7/1/2047	A2		2,000		2,371,540
San Francisco Arpt AMT	4.00%	5/1/2049	A1		1,000		1,135,970
San Francisco Arpt AMT	5.00%	5/1/2027	A1		1,430		1,450,206
San Francisco Arpt AMT	5.00%	5/1/2040	A1		1,500		1,672,410
San Francisco Arpt AMT	5.00%	5/1/2045	A1		1,500		1,853,565
San Francisco Arpt AMT	5.00%	5/1/2050	A1		4,000		4,908,160
San Francisco Port AMT	5.00%	3/1/2030	Aa3		1,415		1,597,280
San Joaquin Hills Trsp Corridor	5.00%	1/15/2029	A-		1,220		1,402,512
San Joaquin Hills Trsp Corridor	5.00%	1/15/2050	A-		4,815		5,338,583
San Joaquin Hills Trsp Corridor	5.25%	1/15/2044	BBB+		2,100		2,345,595
San Joaquin Hills Trsp Corridor	5.25%	1/15/2049	BBB+		1,930		2,146,469
San Joaquin Hills Trsp Corridor (NPFGC)(FGIC)	Zero Coupon	1/15/2036	Baa2		1,350		928,975
San Jose Arpt AMT	5.00%	3/1/2047	A2		3,475		4,066,341
San Jose Arpt AMT	6.25%	3/1/2034	A2		1,500		1,512,180
Total							108,958,587
Utilities 11.79%
Adelanto Util Sys (AGM)	5.00%	7/1/2039	AA		1,335		1,640,248
CA Poll Ctl - Poseidon Res†	5.00%	11/21/2045	Baa3		2,500		2,969,975
Casitas Muni Water Dist (BAM)	5.25%	9/1/2047	AA		1,525		1,856,550
El Dorado Irrigation Dist (AGM)	5.25%	3/1/2039	AA		750		869,850
Guam Pwr Auth (AGM)	5.00%	10/1/2034	AA		705		801,247
Guam Waterworks Auth	5.00%	1/1/2050	A-		600		745,758

See Notes to Schedule of Investments. 121

Schedule of Investments (unaudited)(continued)

CALIFORNIA TAX FREE FUND December 31, 2020

Investments		Interest Rate		Maturity Date	Credit Rating: S&P or Moody’s		Principal Amount (000)		Fair Value
Utilities (continued)
Guam Waterworks Auth		5.50%		7/1/2043	A-		$	525	$	593,203
Long Beach Nat Gas - ML	1.579% (3 Mo. LIBOR * .67 + 1.43%)		#	11/15/2026	A2			1,000		1,023,050
Long Beach Nat Gas - ML		5.50%		11/15/2037	A2			1,825		2,749,089
Los Angeles DWAP - Pwr Sys		5.25%		7/1/2037	Aa2			1,500		1,881,060
Los Angeles DWAP - Pwr Sys		5.25%		7/1/2049	Aa2			2,000		2,593,080
Los Angeles Wastewater		5.00%		6/1/2044	AA+			1,000		1,170,670
Middle Fork Proj Fin Auth		5.00%		4/1/2036	Baa3			1,950		2,409,225
Mountain House Util Sys (BAM)		4.00%		12/1/2045	AA			2,720		3,195,592
MSR Energy Auth - Citi		6.50%		11/1/2039	BBB+			2,380		3,969,816
MSR Energy Auth - Citi		7.00%		11/1/2034	BBB+			2,500		4,009,975
Northern CA Gas - Goldman Sachs		4.00%	#(a)	7/1/2049	A3			3,000		3,344,550
Northern CA Gas - Morgan Stanley	0.871% (3 Mo. LIBOR * .67 + .72%)		#	7/1/2027	A2			1,875		1,866,300
PR Aqueduct & Swr Auth		5.25%		7/1/2042	Ca			1,230		1,296,112
PR Elec Pwr Auth(c)		5.25%		7/1/2024	D	(b)		255		207,188
PR Elec Pwr Auth(c)		5.25%		7/1/2033	D	(b)		115		93,438
PR Elec Pwr Auth(c)		7.00%		7/1/2040	D	(b)		450		376,313
San Diego Water		5.00%		8/1/2043	Aa3			1,000		1,259,790
San Francisco City & Co PUC Wastewater		4.00%		10/1/2043	AA			1,250		1,467,287
San Francisco City & Co PUC Wastewater		4.00%		11/1/2050	Aa2			750		909,847
Santa Maria Wtr & Wastewtr		5.00%		2/1/2027	AA-			1,000		1,052,140
Silicon Valley Clean Wtr		4.00%		8/1/2046	AA			1,500		1,719,960
South Placer Wtr Auth		5.00%		11/1/2035	Aa3			500		728,185
Southern CA Pub Pwr Auth - Apex		5.00%		7/1/2038	AA-			1,000		1,141,060
Southern CA Pub Pwr Auth -
Goldman Sachs	1.614% (3 Mo. LIBOR * .67 + 1.47%)		#	11/1/2038	A3			770		708,831
Southern CA Pub Pwr Auth - Goldman Sachs		5.00%		11/1/2033	A3			5,180		7,136,641
Stockton PFA - Wastewater (BAM)		5.00%		9/1/2029	AA			1,000		1,140,140
Transbay Pwr Auth		5.00%		10/1/2025	BBB+	(b)		1,130		1,312,857
Transbay Pwr Auth		5.00%		10/1/2027	BBB+	(b)		1,245		1,507,932
Transbay Pwr Auth		5.00%		10/1/2029	BBB+	(b)		1,370		1,710,705
Transbay Pwr Auth		5.00%		10/1/2031	BBB+	(b)		765		952,371
Transbay Pwr Auth		5.00%		10/1/2032	BBB+	(b)		1,090		1,346,662
Transbay Pwr Auth		5.00%		10/1/2034	BBB+	(b)		300		367,599

122 See Notes to Schedule of Investments.

Schedule of Investments (unaudited)(continued)

CALIFORNIA TAX FREE FUND December 31, 2020

Investments		Interest Rate	Maturity Date	Credit Rating: S&P or Moody’s		Principal Amount (000)		Fair Value
Utilities (continued)
Transbay Pwr Auth		5.00%	10/1/2035	BBB+	(b)	$	200	$	244,342
Transbay Pwr Auth		5.00%	10/1/2038	BBB+	(b)		650		784,453
Valley Co Wtr Dist		4.50%	1/1/2048	AA-			1,245		1,449,329
Total									66,602,420
Total Municipal Bonds (cost $512,890,069)									553,899,183
	Interest Rate#	Interest Rate Reset Date(d)	Final Maturity Date
SHORT-TERM INVESTMENT 0.46%
Variable Rate Demand Notes 0.46%
General Obligation
CA State GO (cost $2,600,000)	0.04%	1/4/2021	5/1/2034	AAA			2,600		2,600,000
Total Investments in Securities 98.53% (cost $515,490,069)									556,499,183
Cash and Other Assets in Excess of Liabilities 1.47%									8,286,165
Net Assets 100.00%								$	564,785,348

AGM	Insured by - Assured Guaranty Municipal Corporation.
AMT	Income from the security may be subject to Alternative Minimum Tax.
BAM	Insured by - Build America Mutual.
COP	Certificates of Participation.
FGIC	Insured by - Financial Guaranty Insurance Company.
LIBOR	London Interbank Offered Rate.
NPFGC	Insured by - National Public Finance Guarantee Corporation.
NR	Not Rated.
SIFMA	Insured by - Securities Industry and Financial Markets Association.
TCRS	Transferable Custodial Receipt.

#	Variable rate security. The interest rate represents the rate in effect at December 31, 2020.
†	Security was purchased pursuant to Rule 144A under the Securities Act of 1933 and, unless registered under such Act or exempted from registration, may only be resold to qualified institutional buyers. At December 31, 2020, the total value of Rule 144A securities was $19,539,190, which represents 3.46% of net assets.
(a)	Variable Rate is Fixed to Float: Rate remains fixed or at Zero Coupon until designated future date.
(b)	This investment has been rated by Fitch IBCA.
(c)	Defaulted (non-income producing security).
(d)	The interest rate reset date shown represents the date in which the Fund has the right to sell a Variable Rate Demand Note (“VRDN”) back to the issuer for Principal Amount. The interest rate on the VRDN is generally reset daily based on the SIFMA Municipal Swap Index.

See Notes to Schedule of Investments. 123

Schedule of Investments (unaudited)(concluded)

CALIFORNIA TAX FREE FUND December 31, 2020

The following is a summary of the inputs used as of December 31, 2020 in valuing the Fund’s investments carried at fair value⁽¹⁾:

Investment Type(2)	Level 1		Level 2		Level 3		Total
Municipal Bonds	$	-	$	553,899,183	$	-	$	553,899,183
Short-Term Investment
Variable Rate Demand Notes		-		2,600,000		-		2,600,000
Total	$	-	$	556,499,183	$	-	$	556,499,183

(1)	Refer to Note 2(b) for a description of fair value measurements and the three-tier hierarchy of inputs.
(2)	See Schedule of Investments for fair values in each industry.

A reconciliation of Level 3 investments is presented when the Fund has a material amount of Level 3 investments at the beginning or end of the period in relation to the Fund’s net assets.

124 See Notes to Schedule of Investments.

Schedule of Investments (unaudited)

NEW JERSEY TAX FREE FUND December 31, 2020

Investments	Interest Rate		Maturity Date	Credit Rating: S&P or Moody’s	Principal Amount (000)		Fair Value
MUNICIPAL BONDS 98.62%
Corporate-Backed 2.90%
Gloucester Co Poll Ctl - Logan AMT		5.00%	12/1/2024	BBB-	$	190	$	200,655
NJ EDA - Continental Airlines AMT		5.25%	9/15/2029	Ba3		1,675		1,773,239
NJ EDA - Continental Airlines AMT		5.50%	6/1/2033	Ba3		350		373,810
NJ EDA - Goethals Brdg AMT		5.00%	7/1/2023	A2		70		77,351
NJ EDA - Goethals Brdg AMT		5.00%	1/1/2028	A2		100		111,280
NJ EDA - Goethals Brdg AMT (AGM)		5.00%	1/1/2031	AA		225		253,638
Salem Co Poll Ctl - Chambers AMT		5.00%	12/1/2023	BBB		940		992,405
Total								3,782,378
Education 6.45%
Gloucester Co Impt Auth - Rowan Univ GTD		5.00%	7/1/2044	Aa1		370		464,176
NJ Ed Facs - Kean Univ (AGM)		5.00%	7/1/2027	AA		325		381,381
NJ Ed Facs - NJ City Univ (AGM)		5.00%	7/1/2030	AA		840		980,658
NJ Ed Facs - Seton Hall Univ		4.00%	7/1/2046	BBB+		545		574,305
NJ Ed Facs - Seton Hall Univ (AGM)		3.25%	7/1/2049	AA		400		428,144
NJ Ed Facs - Stockton Univ		5.00%	7/1/2034	BBB+		325		368,287
NJ Ed Facs - Stockton Univ		5.00%	7/1/2041	Baa1		800		912,296
NJ EDA - Montclair St Univ (AGM)		5.00%	6/1/2042	AA		500		590,895
NJ EDA - Stevens Inst Tech		3.00%	7/1/2050	BBB+		1,000		1,022,860
NJ EDA - Stevens Inst Tech		4.00%	7/1/2050	BBB+		200		220,490
NJ Higher Ed Assistance Auth AMT		3.25%	12/1/2039	Aa1		650		670,312
NJ Higher Ed Assistance Auth AMT		4.125%	12/1/2024	Aaa		365		388,123
NJ Higher Ed Assistance Auth AMT		5.00%	12/1/2022	Aaa		750		815,047
NJ Inst of Tech		5.00%	7/1/2033	A1		170		220,402
Rutgers State Univ		5.00%	5/1/2028	Aa3		300		387,360
Total								8,424,736
Financial Service 0.19%
NJ Higher Ed Assistance Auth AMT		5.00%	12/1/2028	Aaa		200		250,594
General Obligation 12.56%
Atlantic City GO (AGM)		5.00%	3/1/2037	AA		500		599,165
Atlantic City GO (BAM)		5.00%	3/1/2042	AA		750		889,912
Cumberland Co Impt Auth (BAM)		4.00%	10/1/2048	AA		750		867,997
Essex Co GO GTD		4.00%	11/1/2049	Aaa		1,125		1,271,689
Gloucester Co Impt Auth - Rowan Univ GTD		4.00%	7/1/2048	Aa1		510		590,259

See Notes to Schedule of Investments. 125

Schedule of Investments (unaudited)(continued)

NEW JERSEY TAX FREE FUND December 31, 2020

Investments	Interest Rate		Maturity Date	Credit Rating: S&P or Moody’s	Principal Amount (000)		Fair Value
General Obligation (continued)
Hudson Cnty Impt Auth		4.00%	10/1/2046	AA	$	840	$	1,003,859
Hudson Cnty NJ GO		2.00%	11/15/2035	AA		760		770,792
Hudson Co Impt Auth - Solid Waste GTD		4.00%	1/1/2040	AA		500		591,480
Jersey City GO		5.00%	11/1/2033	AA-		135		167,833
Mercer Cnty GO		4.00%	3/15/2040	AA+		190		227,415
Mercer Cnty GO		4.00%	4/1/2031	AA+		200		248,220
Newark GO (AGM)		4.00%	10/1/2035	AA		250		296,235
Newark GO (AGM)		4.00%	10/1/2037	AA		275		322,531
Newark Hsg Auth - Port Newark		4.00%	1/1/2037	A+		550		613,179
NJ State GO		2.50%	6/1/2038	A3		1,000		1,012,790
NJ State GO		4.00%	6/1/2031	A3		1,000		1,237,700
NJ State GO		4.00%	6/1/2032	A3		500		623,785
NJ State GO		5.00%	6/1/2027	A3		185		218,078
NJ State GO		5.00%	6/1/2027	A3		680		850,959
PR Comwlth GO(a)		5.375%	7/1/2030	Ca		1,000		742,500
Rutherford BOE		2.50%	12/15/2034	AA-		1,000		1,033,290
Somerset Co GO GTD		4.00%	9/1/2050	AAA		1,000		1,203,180
Union Co Util Auth - Covanta GTD AMT		4.75%	12/1/2031	AA+		1,000		1,026,880
Total								16,409,728
Health Care 12.48%
Camden Co Impt Auth - Cooper Hlth		5.00%	2/15/2030	BBB+		500		553,615
Camden Co Impt Auth - Cooper Hlth		5.00%	2/15/2032	BBB+		500		551,545
Camden Co Impt Auth - Cooper Hlth		5.75%	2/15/2042	BBB+		425		457,644
NJ EDA - Bancroft Neuro		5.00%	6/1/2036	NR		220		243,302
NJ Hlth - AHS Hsp Corp		5.00%	7/1/2030	AA-		105		128,100
NJ Hlth - AHS Hsp Corp		5.00%	7/1/2031	AA-		125		151,994
NJ Hlth - Hackensack Meridian Hlth		5.00%	7/1/2027	AA-		300		383,775
NJ Hlth - Hackensack Meridian Hlth		5.00%	7/1/2029	AA-		620		782,000
NJ Hlth - Hackensack Meridian Hlth		5.00%	7/1/2031	AA-		640		800,602
NJ Hlth - Hackensack Meridian Hlth		5.00%	7/1/2033	AA-		260		322,603
NJ Hlth - Hunterdon Med Ctr		5.00%	7/1/2034	A-		500		582,640
NJ Hlth - Inspira Hlth		4.00%	7/1/2047	A2		770		866,804
NJ Hlth - Inspira Hlth		5.00%	7/1/2034	A2		250		301,413
NJ Hlth - Inspira Hlth		5.00%	7/1/2035	A2		100		123,595
NJ Hlth - Inspira Hlth		5.00%	7/1/2042	A2		575		695,882
NJ Hlth - Princeton Hlth		5.00%	7/1/2039	AA		1,000		1,206,440
NJ Hlth - Robert Wood Hsp		5.25%	7/1/2028	AA-		500		556,680

126 See Notes to Schedule of Investments.

Schedule of Investments (unaudited)(continued)

NEW JERSEY TAX FREE FUND December 31, 2020

Investments	Interest Rate		Maturity Date	Credit Rating: S&P or Moody’s	Principal Amount (000)		Fair Value
Health Care (continued)
NJ Hlth - RWJ Barnabas		5.00%	7/1/2033	AA-	$	1,080	$	1,305,677
NJ Hlth - RWJ Barnabas		5.00%	7/1/2043	AA-		865		1,033,874
NJ Hlth - St Josephs Hlth		5.00%	7/1/2027	BBB-		100		118,405
NJ Hlth - St Josephs Hlth		5.00%	7/1/2041	BBB-		750		854,452
NJ Hlth - St Peters Univ Hsp		5.75%	7/1/2037	BB+		600		601,842
NJ Hlth - Trinitas Hsp		5.00%	7/1/2030	BBB		245		291,959
NJ Hlth - Univ Hosp (AGM)		5.00%	7/1/2046	AA		1,000		1,125,230
NJ Hlth Fin Auth - Valley Health		4.00%	7/1/2044	A		1,010		1,165,368
NJ Hlth Fin Auth - Valley Health		5.00%	7/1/2028	A		595		763,802
NJ Hlth Fin Auth - Valley Health		5.00%	7/1/2030	A		255		332,176
Total								16,301,419
Housing 0.08%
NJ Hsg and Mtg Fin Auth		3.15%	5/1/2053	AA-		100		106,140
Lease Obligations 20.18%
Gloucester Co Impt Auth - Rowan Univ (AGM)		5.00%	11/1/2029	AA		250		304,893
Gloucester Co Impt Auth - Rowan Univ (AGM)		5.00%	11/1/2030	AA		290		352,440
NJ Ed Facs - Higher Ed Cap Impt		5.00%	9/1/2024	Baa1		125		142,959
NJ Ed Facs - Higher Ed Cap Impt		5.00%	9/1/2026	Baa1		235		266,020
NJ Ed Facs - Higher Ed Cap Impt		5.00%	9/1/2033	Baa1		1,060		1,176,144
NJ Ed Facs - Higher Ed Cap Impt		5.00%	9/1/2036	Baa1		535		618,080
NJ Ed Facs - Higher Ed Cap Impt		5.50%	9/1/2033	Baa1		410		491,135
NJ EDA - Bldgs		5.00%	6/15/2047	Baa1		540		630,072
NJ EDA - Goethals Brdg AMT		5.375%	1/1/2043	BBB		1,560		1,724,455
NJ EDA - Goethals Brdg AMT		5.625%	1/1/2052	BBB		210		233,142
NJ EDA - Motor Vehicle Surcharge Sub Rev		5.00%	7/1/2033	BBB		565		653,677
NJ EDA - Sch Facs		4.00%	6/15/2030	Baa1		745		798,722
NJ EDA - Sch Facs		4.00%	6/15/2049	Baa1		1,390		1,531,988
NJ EDA - Sch Facs		5.00%	6/15/2026	Baa1		145		168,238
NJ EDA - Sch Facs		5.00%	3/1/2028	Baa1		375		403,376
NJ EDA - Sch Facs		5.00%	6/15/2029	Baa1		500		603,170
NJ EDA - Sch Facs		5.00%	6/15/2030	Baa1		160		177,819
NJ EDA - Sch Facs		5.00%	6/15/2031	Baa1		745		826,235
NJ EDA - Sch Facs		5.00%	6/15/2034	Baa1		390		430,002
NJ EDA - Sch Facs		5.00%	3/1/2035	Baa1		250		264,018
NJ EDA - Sch Facs		5.00%	6/15/2035	Baa1		640		746,214

See Notes to Schedule of Investments. 127

Schedule of Investments (unaudited)(continued)

NEW JERSEY TAX FREE FUND December 31, 2020

Investments	Interest Rate		Maturity Date	Credit Rating: S&P or Moody’s	Principal Amount (000)		Fair Value
Lease Obligations (continued)
NJ EDA - Sch Facs		5.00%	6/15/2042	Baa1	$	480	$	558,067
NJ EDA - Sch Facs		5.00%	6/15/2048	Baa1		500		588,995
NJ EDA - State House Proj		5.00%	6/15/2035	Baa1		750		914,287
NJ EDA - Transit		5.00%	11/1/2033	Baa1		500		622,875
NJ Hlth - Hsp Asset Trans		5.00%	10/1/2038	Baa1		520		599,300
NJ Trans Trust Fund		Zero Coupon	12/15/2031	Baa1		1,770		1,363,785
NJ Trans Trust Fund		Zero Coupon	12/15/2038	Baa1		1,050		626,566
NJ Trans Trust Fund		4.00%	12/15/2039	Baa1		1,000		1,125,780
NJ Trans Trust Fund		4.00%	6/15/2050	Baa1		1,000		1,097,590
NJ Trans Trust Fund		4.25%	12/15/2038	Baa1		345		393,818
NJ Trans Trust Fund		4.75%	6/15/2038	Baa1		980		1,083,949
NJ Trans Trust Fund		5.00%	6/15/2030	A+		545		635,939
NJ Trans Trust Fund		5.00%	6/15/2031	A+		400		464,428
NJ Trans Trust Fund		5.00%	6/15/2036	Baa1		270		289,694
NJ Trans Trust Fund		5.00%	12/15/2036	Baa1		530		641,819
NJ Trans Trust Fund		5.00%	6/15/2038	Baa1		1,380		1,513,832
NJ Trans Trust Fund		5.25%	6/15/2041	Baa1		205		233,329
NJ Trans Trust Fund		5.25%	6/15/2043	Baa1		720		868,486
PR Infra Fin Auth - Mepsi Campus(a)		6.50%	10/1/2037	NR		500		201,250
Total								26,366,588
Other Revenue 0.66%
Middlesex Co Impt Auth - Heldrich Ctr(a) 6.25%			1/1/2037	NR		1,300		26,000
NJ EDA - Bancroft Neuro		5.00%	6/1/2041	NR		350		383,401
NJ EDA - Sch Facs		5.00%	3/1/2027	Baa1		420		452,869
Total								862,270
Special Tax 0.57%
NJ EDA - Kapkowski Rd Landfill		6.50%	4/1/2028	Ba2		675		745,031
Tax Revenue 4.74%
Casino Reinv Dev Auth		5.25%	11/1/2039	BBB+		525		551,219
Casino Reinv Dev Auth (AGM)		5.00%	11/1/2032	AA		500		552,590
Garden St Preservation Trust (AGM)		5.75%	11/1/2028	AA		1,205		1,516,444
NJ EDA - Cigarette Tax		4.25%	6/15/2027	BBB		550		567,287
NJ EDA - Cigarette Tax		5.00%	6/15/2025	BBB		330		346,596
NJ EDA - Cigarette Tax		5.00%	6/15/2029	BBB		120		125,172
PR Corp Sales Tax		Zero Coupon	7/1/2029	NR		18		15,309

128 See Notes to Schedule of Investments.

Schedule of Investments (unaudited)(continued)

NEW JERSEY TAX FREE FUND December 31, 2020

Investments	Interest Rate		Maturity Date	Credit Rating: S&P or Moody’s	Principal Amount (000)		Fair Value
Tax Revenue (continued)
PR Corp Sales Tax		Zero Coupon	7/1/2031	NR	$	235	$	183,119
PR Corp Sales Tax		Zero Coupon	7/1/2033	NR		598		428,933
PR Corp Sales Tax		Zero Coupon	7/1/2051	NR		1,940		434,405
PR Corp Sales Tax		4.329%	7/1/2040	NR		96		104,269
PR Corp Sales Tax		4.329%	7/1/2040	NR		492		534,036
PR Corp Sales Tax		4.536%	7/1/2053	NR		3		3,262
PR Corp Sales Tax		4.55%	7/1/2040	NR		19		20,902
PR Corp Sales Tax		4.75%	7/1/2053	NR		267		294,090
PR Corp Sales Tax		4.784%	7/1/2058	NR		40		44,078
PR Corp Sales Tax		5.00%	7/1/2058	NR		420		469,098
Total								6,190,809
Tobacco 3.86%
NJ EDA - Cigarette Tax		5.00%	6/15/2026	BBB		1,025		1,074,272
Tobacco Settlement Fin Corp NJ		5.00%	6/1/2046	BB+		2,350		2,744,870
Tobacco Settlement Fin Corp NJ		5.25%	6/1/2046	BBB+		1,000		1,219,020
Total								5,038,162
Transportation 26.38%
Delaware River & Bay Auth		4.00%	1/1/2044	A1		850		972,375
Delaware River & Bay Auth		5.00%	1/1/2042	A1		1,025		1,091,553
Delaware River Port Auth		5.00%	1/1/2022	A		1,115		1,158,440
Delaware River Port Auth		5.00%	1/1/2024	A		360		385,700
Delaware River Port Auth		5.00%	1/1/2028	A+		525		591,990
Delaware River Port Auth		5.00%	1/1/2034	A+		505		564,176
Delaware River Port Auth		5.00%	1/1/2040	A+		515		639,903
Delaware River Toll Brdg Commn		3.00%	7/1/2049	A1		1,000		1,074,820
Delaware River Toll Brdg Commn		4.00%	7/1/2047	A1		1,205		1,355,709
Delaware River Toll Brdg Commn		5.00%	7/1/2030	A1		280		354,141
NJ EDA - Goethals Brdg AMT (AGM)		5.125%	1/1/2039	AA		925		1,033,308
NJ EDA - Port Newark AMT		5.00%	10/1/2047	Baa3		750		855,600
NJ EDA - Transit		4.00%	11/1/2044	Baa1		250		277,258
NJ Tpk Auth		4.00%	1/1/2043	A+		1,010		1,155,460
NJ Tpk Auth		4.00%	1/1/2048	A+		1,000		1,146,350
NJ Tpk Auth		5.00%	1/1/2030	A+		510		630,528
NJ Tpk Auth		5.00%	1/1/2030	A+		585		745,594
NJ Tpk Auth		5.00%	1/1/2033	A+		1,285		1,460,094
NJ Tpk Auth		5.00%	1/1/2033	A+		560		704,642

See Notes to Schedule of Investments. 129

Schedule of Investments (unaudited)(continued)

NEW JERSEY TAX FREE FUND December 31, 2020

Investments	Interest Rate		Maturity Date	Credit Rating: S&P or Moody’s	Principal Amount (000)		Fair Value
Transportation (continued)
NJ Tpk Auth		5.00%	1/1/2034	A+	$	510	$	586,985
NJ Tpk Auth		5.00%	1/1/2034	A+		615		749,827
NJ Tpk Auth		5.00%	1/1/2035	A+		515		609,544
NJ Tpk Auth		5.00%	1/1/2037	A+		320		397,955
NJ Tpk Auth (AGM)		5.25%	1/1/2028	AA		810		1,066,090
NJ Trans Trust Fund		4.00%	6/15/2050	Baa1		1,000		1,110,400
NJ Trans Trust Fund		5.00%	6/15/2028	A+		1,000		1,183,090
Port Auth NY & NJ		4.00%	7/15/2039	Aa3		750		901,605
Port Auth NY & NJ		4.00%	7/15/2040	Aa3		435		521,591
Port Auth NY & NJ		4.00%	9/1/2043	Aa3		850		981,980
Port Auth NY & NJ		5.00%	11/15/2033	Aa3		500		629,675
Port Auth NY & NJ		5.00%	10/15/2035	Aa3		500		616,205
Port Auth NY & NJ		5.00%	7/15/2038	Aa3		420		528,935
Port Auth NY & NJ		5.00%	11/15/2047	Aa3		565		689,922
Port Auth NY & NJ - JFK IAT		6.00%	12/1/2036	Baa1		240		240,350
Port Auth NY & NJ - JFK IAT CR (AGM)		6.00%	12/1/2042	NR		205		205,301
Port Auth NY & NJ AMT		4.00%	9/1/2043	Aa3		850		982,439
Port Auth NY & NJ AMT		4.00%	11/1/2059	Aa3		200		227,780
Port Auth NY & NJ AMT		5.00%	9/15/2029	Aa3		320		404,736
Port Auth NY & NJ AMT		5.00%	9/15/2032	Aa3		505		629,811
Port Auth NY & NJ AMT		5.00%	11/15/2032	Aa3		500		603,270
Port Auth NY & NJ AMT		5.00%	9/15/2033	Aa3		545		676,688
Port Auth NY & NJ AMT		5.00%	10/15/2036	Aa3		1,190		1,353,768
South Jersey Port Corp AMT		5.00%	1/1/2048	Baa1		500		562,330
South Jersey Trans Auth		5.00%	11/1/2039	BBB+		530		597,776
South Jersey Trans Auth (BAM)		4.00%	11/1/2050	AA		500		573,795
South Jersey Trans Auth (BAM)		5.00%	11/1/2045	AA		500		629,675
Total								34,459,164
Utilities 7.57%
Guam Pwr Auth (AGM)		5.00%	10/1/2034	AA		400		454,608
Guam Waterworks Auth		5.00%	7/1/2036	A-		100		116,573
Guam Waterworks Auth		5.00%	1/1/2050	A-		300		372,879
NJ EDA - Middlesex Water AMT		4.00%	8/1/2059	A+		500		561,040
NJ EDA - Nat Gas		3.50%	4/1/2042	A1		1,655		1,727,721
NJ EDA - Nat Gas AMT		3.00%	8/1/2041	A1		1,000		1,022,150
NJ EDA - NJ American Wtr Co AMT		2.20%#(b)	10/1/2039	A+		500		541,735
NJ EDA - UMM Energy AMT		4.75%	6/15/2032	Baa2		1,000		1,048,790

130 See Notes to Schedule of Investments.

Schedule of Investments (unaudited)(concluded)

NEW JERSEY TAX FREE FUND December 31, 2020

Investments	Interest Rate		Maturity Date	Credit Rating: S&P or Moody’s		Principal Amount (000)		Fair Value
Utilities (continued)
NJ Infra Bank-NJ-Am Wtr Co AMT		4.00%	9/1/2036	AAA		$	335	$	383,699
NJ Infra Bank-NJ-Am Wtr Co AMT		4.00%	9/1/2047	AAA			1,500		1,677,885
NJ Tpk Auth		5.00%	1/1/2031	A+			510		647,598
Passaic Valley Swr (AGM)		3.00%	12/1/2038	AA			1,000		1,106,190
PR Elec Pwr Auth(a)		5.00%	7/1/2037	D	(c)		110		89,100
PR Elec Pwr Auth(a)		5.75%	7/1/2036	D	(c)		75		61,312
PR Elec Pwr Auth(a)		7.00%	7/1/2040	D	(c)		100		83,625
Total									9,894,905
Total Investments in Securities 98.62% (cost $120,965,538)									128,831,924
Cash and Other Assets in Excess of Liabilities 1.38%									1,808,279
Net Assets 100.00%								$	130,640,203

AGM	Insured by - Assured Guaranty Municipal Corporation.
AMT	Income from the security may be subject to Alternative Minimum Tax.
BAM	Insured by - Build America Mutual.
GTD	Guaranteed.
NR	Not Rated.

#	Variable rate security. The interest rate represents the rate in effect at December 31, 2020.
(a)	Defaulted (non-income producing security).
(b)	Variable Rate is Fixed to Float: Rate remains fixed or at Zero Coupon until designated future date.
(c)	This investment has been rated by Fitch IBCA.

The following is a summary of the inputs used as of December 31, 2020 in valuing the Fund's investments carried at fair value⁽¹⁾:

Investment Type(2)	Level 1		Level 2		Level 3		Total
Municipal Bonds	$	-	$	128,831,924	$	-	$	128,831,924
Total	$	-	$	128,831,924	$	-	$	128,831,924

(1)	Refer to Note 2(b) for a description of fair value measurements and the three-tier hierarchy of inputs.
(2)	See Schedule of Investments for fair values in each industry.

A reconciliation of Level 3 investments is presented when the Fund has a material amount of Level 3 investments at the beginning or end of the period in relation to the Fund’s net assets.

See Notes to Schedule of Investments. 131

Schedule of Investments (unaudited)

NEW YORK TAX FREE FUND December 31, 2020

Investments	Interest Rate		Maturity Date	Credit Rating: S&P or Moody’s		Principal Amount (000)		Fair Value
MUNICIPAL BONDS 98.93%
Corporate-Backed 7.07%
Brooklyn Arena LDC - Barclays Ctr Zero Coupon			7/15/2047	Ba1		$	250	$	91,620
Build NYC Res Corp - Pratt Paper AMT†	4.50%		1/1/2025	NR			205		218,766
Build NYC Res Corp - Pratt Paper AMT†	5.00%		1/1/2035	NR			250		277,805
Liberty Dev Corp - Goldman Sachs	5.25%		10/1/2035	A3			6,100		8,873,182
Liberty Dev Corp - Goldman Sachs	5.50%		10/1/2037	A3			3,035		4,637,753
Niagara Area Dev Corp - Covanta AMT†	4.75%		11/1/2042	B1			1,750		1,809,728
NY Env Facs - Casella Waste AMT	2.75%	#(a)	9/1/2050	B			500		517,695
NY Env Facs - Casella Waste AMT†	2.875%	#(a)	12/1/2044	B			1,500		1,543,455
NY Liberty Dev Corp - 3 WTC†	5.00%		11/15/2044	NR			6,155		6,635,398
NY Liberty Dev Corp - 3 WTC†	5.15%		11/15/2034	NR			750		810,338
NY Liberty Dev Corp - 3 WTC†	7.25%		11/15/2044	NR			1,000		1,103,850
NY Liberty Dev Corp - 7 WTC	5.00%		9/15/2040	Aaa			1,015		1,063,994
NY Liberty Dev Corp - BofA Tower	2.80%		9/15/2069	Baa2			2,500		2,442,300
NY Trans Dev Corp - American Airlines AMT	5.25%		8/1/2031	B-			1,650		1,867,321
NY Trans Dev Corp - American Airlines AMT	5.375%		8/1/2036	B-			1,025		1,165,845
NY Trans Dev Corp - JFK IAT AMT	4.00%		12/1/2038	Baa1			600		699,330
NYC IDA - TRIPS AMT	5.00%		7/1/2028	BBB+			1,825		1,914,242
Westchester Co - Miriam Osborn Memorial	5.00%		7/1/2034	A-	(b)		200		227,028
Total									35,899,650
Education 13.23%
Build NYC Res Corp - Manhattan Clg	5.00%		8/1/2033	A-			1,125		1,326,240
Build NYC Res Corp - NY Law	5.00%		7/1/2041	BBB-			1,000		1,076,850
Build NYC Res Corp - Packer Collegiate	5.00%		6/1/2040	A2			1,000		1,113,930
Dutchess Co LDC - Anderson Ctr	6.00%		10/1/2030	BB+			725		726,211
Dutchess Co LDC - Bard College†	5.00%		7/1/2045	BB+			1,000		1,104,060
Dutchess Co LDC - Bard College†	5.00%		7/1/2051	BB+			1,000		1,095,680
Dutchess Co LDC - Culinary Institute	5.00%		7/1/2033	Baa2			390		433,376
Dutchess Co LDC - Culinary Institute	5.00%		7/1/2041	Baa2			200		219,406
Dutchess Co LDC - Culinary Institute	5.00%		7/1/2046	Baa2			275		299,126
Dutchess Co LDC - Vassar College	5.00%		7/1/2034	Aa3			250		307,630
Hempstead Town LDC - Adelphi Univ	4.00%		2/1/2039	A-			2,125		2,361,321
Hempstead Town LDC - Hofstra Univ	5.00%		7/1/2042	A			545		645,176
Hempstead Town LDC - Molloy Clg	5.00%		7/1/2034	BBB			825		961,488
Hempstead Town LDC - Molloy Clg	5.00%		7/1/2037	BBB			630		730,126
Hempstead Town LDC - Molloy Clg	5.00%		7/1/2039	BBB			555		640,414

132 See Notes to Schedule of Investments.

Schedule of Investments (unaudited)(continued)

NEW YORK TAX FREE FUND December 31, 2020

Investments	Interest Rate	Maturity Date	Credit Rating: S&P or Moody’s		Principal Amount (000)		Fair Value
Education (continued)
Monroe Co IDA - Univ of Rochester	5.00%	7/1/2031	AA-		$	350	$	438,081
New Rochelle LDC - Iona Clg	5.00%	7/1/2028	BBB			205		233,065
New Rochelle LDC - Iona Clg	5.00%	7/1/2029	BBB			250		283,053
New Rochelle LDC - Iona Clg	5.00%	7/1/2030	BBB			220		247,760
New Rochelle LDC - Iona Clg	5.00%	7/1/2031	BBB			200		224,388
NY Dorm - Barnard Clg	4.00%	7/1/2045	A2			1,020		1,168,512
NY Dorm - Barnard Clg	5.00%	7/1/2028	A2			590		705,941
NY Dorm - Fordham Univ	4.00%	7/1/2050	A			3,500		3,992,660
NY Dorm - Fordham Univ	5.00%	7/1/2035	A			550		652,707
NY Dorm - Long Island Univ	5.00%	9/1/2026	BBB+			1,000		1,052,740
NY Dorm - Mt Sinai Sch Med	5.00%	7/1/2040	A-			2,000		2,285,580
NY Dorm - NYU	4.00%	7/1/2045	Aa2			1,000		1,177,890
NY Dorm - NYU	5.00%	7/1/2028	Aa2			1,000		1,280,290
NY Dorm - NYU	5.00%	7/1/2029	Aa2			1,000		1,273,600
NY Dorm - NYU	5.00%	7/1/2042	Aa2			1,500		1,928,205
NY Dorm - Pace Univ	4.00%	5/1/2022	NR			25		26,281
NY Dorm - Pace Univ	5.00%	5/1/2023	NR			20		22,253
NY Dorm - Pace Univ	5.00%	5/1/2023	BBB-			905		977,110
NY Dorm - PIT	5.00%	2/15/2039	AA+			1,000		1,219,770
NY Dorm - PIT	5.00%	2/15/2041	NR			5		6,533
NY Dorm - PIT	5.00%	2/15/2041	AA+			2,995		3,699,454
NY Dorm - Pratt Institute	5.00%	7/1/2034	A2			1,035		1,206,851
NY Dorm - Pratt Institute	5.00%	7/1/2039	A2			1,010		1,170,610
NY Dorm - St Johns Univ	5.00%	7/1/2027	A-			250		292,770
NY Dorm - SUNY	3.00%	7/1/2042	Aa3			2,790		3,000,366
NY Dorm - SUNY Empire Commons	5.00%	5/1/2030	A			350		393,526
NY Dorm - SUNY Empire Commons	5.00%	5/1/2032	A			250		278,845
NY Dorm - The New School	5.00%	7/1/2028	A3			780		941,725
NY Dorm - Touro Clg	5.00%	1/1/2047	BBB-	(b)		1,500		1,624,230
NY Dorm - Touro Clg	5.25%	1/1/2034	BBB-	(b)		1,225		1,313,445
NYC IDA - Yankee Stadium (AGM)	3.00%	3/1/2049	AA			3,400		3,574,998
NYC IDA - Yankee Stadium (AGM)	4.00%	3/1/2045	AA			1,200		1,404,516
Onondaga CDC - Upstate Prop Dev	5.50%	12/1/2031	NR			1,000		1,047,830
Rochester Institute of Technology	4.00%	7/1/2044	A1			4,510		5,219,017
Rochester Institute of Technology	5.00%	7/1/2049	A1			1,530		1,914,397
St Lawrence IDA - Clarkson Univ	6.00%	9/1/2034	Baa1			1,625		1,665,349
Troy Cap Res Corp - RPI	4.00%	9/1/2040	A3			1,000		1,127,040

See Notes to Schedule of Investments. 133

Schedule of Investments (unaudited)(continued)

NEW YORK TAX FREE FUND December 31, 2020

Investments	Interest Rate	Maturity Date	Credit Rating: S&P or Moody’s		Principal Amount (000)		Fair Value
Education (continued)
Troy Cap Res Corp - RPI	5.00%	8/1/2032	A3		$	1,415	$	1,630,674
Univ of Rochester	4.00%	7/1/2043	AA-			1,000		1,144,510
Westchester Co - Miriam Osborn Memorial	5.00%	7/1/2042	A-	(b)		450		505,679
Westchester Co - Sarah Lawrence College	4.00%	6/1/2033	BBB-			1,700		1,773,372
Total								67,166,657
General Obligation 7.43%
City of Syracuse	4.00%	5/15/2034	A1			725		827,124
Erie CO GO	5.00%	9/15/2028	AA-			275		333,449
Jefferson Co - Samaritan Med Ctr	5.00%	11/1/2037	BBB-			2,000		2,346,340
NY Dorm - Sch Dist (AGM)	5.00%	10/1/2027	AA			1,000		1,160,920
NYC GO	4.00%	8/1/2034	AA			3,000		3,688,200
NYC GO	4.00%	8/1/2037	AA			2,000		2,418,820
NYC GO	4.00%	3/1/2050	AA			1,500		1,741,845
NYC GO	5.00%	8/1/2026	AA			1,000		1,247,420
NYC GO	5.00%	8/1/2026	AA			1,750		2,112,547
NYC GO	5.00%	8/1/2027	AA			1,410		1,513,029
NYC GO	5.00%	8/1/2027	AA			1,700		2,004,861
NYC GO	5.00%	8/1/2029	AA			3,000		3,697,650
NYC GO	5.00%	10/1/2034	AA			1,500		1,625,745
NYC GO	5.00%	10/1/2039	AA			1,000		1,232,950
NYC GO	5.00%	8/1/2043	AA			1,370		1,731,022
NYC GO	5.00%	12/1/2044	AA			2,535		3,158,458
NYC GO	5.00%	4/1/2045	AA			1,380		1,690,127
PR Comwlth GO(c)	5.00%	7/1/2027	Ca			65		50,375
PR Comwlth GO(c)	5.125%	7/1/2028	Ca			155		117,800
PR Comwlth GO(c)	5.375%	7/1/2030	Ca			4,185		3,107,362
PR Comwlth GO(c)	5.50%	7/1/2027	Ca			60		44,100
PR Comwlth GO(c)	6.125%	7/1/2033	Ca			170		131,325
Suffolk Co GO (AGM)	5.00%	2/1/2025	AA			1,460		1,715,369
Total								37,696,838
Health Care 12.37%
Brookhaven Co - Jefferson’s Ferry Proj	4.00%	11/1/2045	BBB	(b)		1,000		1,053,040
Brookhaven Co - Jefferson’s Ferry Proj	4.00%	11/1/2055	BBB	(b)		1,000		1,046,770
Brookhaven Co - Long Island Cmnty Hospital	4.00%	10/1/2045	BBB-			1,865		2,025,446

134 See Notes to Schedule of Investments.

Schedule of Investments (unaudited)(continued)

NEW YORK TAX FREE FUND December 31, 2020

Investments	Interest Rate	Maturity Date	Credit Rating: S&P or Moody’s		Principal Amount (000)		Fair Value
Health Care (continued)
Brookhaven Co - Long Island Cmnty Hospital	5.00%	10/1/2050	BBB-		$	1,000	$	1,194,840
Broome Co - United Health Services (AGM)	3.00%	4/1/2036	AA			1,000		1,089,910
Broome Co - United Health Services (AGM)	3.00%	4/1/2037	AA			1,500		1,629,060
Buffalo & Erie IDC - Catholic Hlth	5.00%	7/1/2025	BBB			300		351,555
Buffalo & Erie IDC - Orchard Park	5.00%	11/15/2037	BBB-	(b)		1,000		1,078,070
Dutchess Co Dev Corp - Nuvance Hlt	4.00%	7/1/2044	A-			1,250		1,414,150
Dutchess Co Dev Corp - Nuvance Hlt	4.00%	7/1/2049	A-			2,120		2,378,089
Dutchess Co LDC - Health Quest	5.00%	7/1/2034	A-			500		582,070
Dutchess Co LDC - Health Quest	5.00%	7/1/2035	A-			1,580		1,842,359
Monroe Co IDA - Rochester General Hospital	5.00%	12/1/2034	BBB+			250		294,562
Monroe Co IDA - Rochester General Hospital	4.00%	12/1/2035	BBB+			500		594,035
Monroe Co IDA - Rochester General Hospital	4.00%	12/1/2036	BBB+			400		473,400
Nassau Co LEAC - Catholic Hlth LI	5.00%	7/1/2027	A-			625		712,244
Nassau Co LEAC - Catholic Hlth LI	5.00%	7/1/2028	A-			2,045		2,320,952
Nassau Co LEAC - Catholic Hlth LI	5.00%	7/1/2033	A-			600		670,254
NY Dorm - Catholic Hlth	4.00%	7/1/2045	BBB			2,895		3,184,095
NY Dorm - Catholic Hlth	5.00%	7/1/2032	BBB			500		526,495
NY Dorm - Maimondes Med Ctr	3.00%	2/1/2050	AA+			1,000		1,056,420
NY Dorm - Montefiore	4.00%	8/1/2036	BBB			375		417,195
NY Dorm - Montefiore	4.00%	8/1/2037	BBB			1,670		1,852,965
NY Dorm - Montefiore	4.00%	8/1/2038	BBB			595		658,617
NY Dorm - Montefiore	4.00%	9/1/2050	BBB			4,000		4,352,040
NY Dorm - Montefiore	5.00%	8/1/2033	BBB			1,035		1,248,593
NY Dorm - Montefiore	5.00%	8/1/2034	BBB			335		403,266
NY Dorm - Montefiore	5.00%	8/1/2035	BBB			525		630,572
NY Dorm - North Shore LI Jewish	5.00%	5/1/2028	A-			1,000		1,177,880
NY Dorm - NYU Hsps Ctr	5.00%	7/1/2032	A			810		969,619
NY Dorm - NYU Hsps Ctr	5.00%	7/1/2033	A			760		906,733
NY Dorm - NYU Langone	4.00%	7/1/2053	A			2,500		2,881,250
NY Dorm - Orange Regl Med Ctr†	5.00%	12/1/2026	BBB-			1,000		1,172,430
NY Dorm - Orange Regl Med Ctr†	5.00%	12/1/2029	BBB-			1,900		2,297,575
NYC Hlth & Hsp Corp(d)	4.00%	2/15/2045	Aa3			1,250		1,474,762
NYC Hlth & Hsp Corp(d)	4.00%	2/15/2048	Aa3			1,285		1,508,860
NYC Hlth & Hsp Corp	5.00%	2/15/2025	Aa3			1,000		1,004,480

See Notes to Schedule of Investments. 135

Schedule of Investments (unaudited)(continued)

NEW YORK TAX FREE FUND December 31, 2020

Investments	Interest Rate	Maturity Date	Credit Rating: S&P or Moody’s		Principal Amount (000)		Fair Value
Health Care (continued)
NYC IDA - Yankee Stadium	3.00%	3/1/2049	Baa1		$	2,000	$	2,088,880
Oneida Co - Mohawk Valley Hlth (AGM)	4.00%	12/1/2049	AA			4,645		5,300,131
Southhold LDC - Peconic Landing	5.00%	12/1/2045	BBB-	(b)		1,000		1,055,400
Tompkins Co Dev Corp - Kendal Ithaca	5.00%	7/1/2044	BBB+			920		981,778
Westchester CO Hlth Care	5.00%	11/1/2033	Baa2			1,000		1,145,790
Westchester CO Hlth Care	5.00%	11/1/2034	Baa2			985		1,127,362
Westchester CO Hlth Care	5.00%	11/1/2046	Baa2			2,240		2,485,549
Westchester CO Hlth Care	6.00%	11/1/2030	Baa2			110		110,426
Westchester CO Hlth Care	6.125%	11/1/2037	Baa2			40		40,161
Total								62,810,130
Housing 1.01%
NY State Hsg	3.15%	11/1/2054	Aa2			1,000		1,039,620
NYC HDC	3.35%	11/1/2065	AA+			1,915		1,988,593
NYC Hsg - 8 Spruce St	4.50%	2/15/2048	NR			1,000		1,042,180
Westchester Co - SUNY Purchase Hsg	5.00%	6/1/2047	BBB			1,000		1,073,480
Total								5,143,873
Lease Obligations 4.46%
Erie Co IDA - Buffalo Sch Dist	5.00%	5/1/2027	AA			1,750		2,112,215
Erie Co IDA - Buffalo Sch Dist	5.00%	5/1/2028	AA			1,050		1,265,660
Erie Co IDA - Buffalo Sch Dist	5.25%	5/1/2030	AA			2,575		2,615,917
Erie Co IDA - Buffalo Sch Dist	5.25%	5/1/2032	AA			1,000		1,015,830
Hudson Yards	5.00%	2/15/2031	Aa3			2,000		2,471,400
Hudson Yards	5.00%	2/15/2033	Aa3			1,075		1,316,381
NY Dorm - Court Facs	Zero Coupon	8/1/2021	AA			2,265		2,261,625
NY Dorm - Master BOCES	5.50%	8/15/2026	Aa3			1,560		1,608,797
NY Dorm- Saint Lawerence-Lewis Boces (BAM)	4.00%	8/15/2050	AA			2,500		2,806,775
NY Liberty Dev Corp - 4 WTC	5.00%	11/15/2031	A			1,000		1,036,400
NYC TFA - Bldg Aid	5.00%	7/15/2027	AA			1,425		1,459,912
NYC TFA - Bldg Aid	5.00%	7/15/2035	AA			2,005		2,479,122
PR Infra Fin Auth - Mepsi Campus(c)	6.50%	10/1/2037	NR			500		201,250
Total								22,651,284
Other 0.84%
Build NYC Res Corp - Childrens Aid Soc	4.00%	7/1/2044	A+			1,340		1,557,482
Build NYC Res Corp - Childrens Aid Soc	4.00%	7/1/2049	A+			2,355		2,704,035
Total								4,261,517

136 See Notes to Schedule of Investments.

Schedule of Investments (unaudited)(continued)

NEW YORK TAX FREE FUND December 31, 2020

Investments	Interest Rate		Maturity Date	Credit Rating: S&P or Moody’s	Principal Amount (000)		Fair Value
Other Revenue 1.08%
Brooklyn Arena LDC - Barclays Ctr	5.00%		7/15/2042	Ba1	$	3,000	$	3,388,560
NYC Cultural - Lincoln Center	4.00%		12/1/2033	A		1,750		2,106,387
Total								5,494,947
Special Tax 1.65%
NYC IDA - Queens Stadium (AMBAC)	5.00%		1/1/2031	Baa3		2,075		2,075,892
NYC IDA - Yankee Stadium	4.00%		3/1/2045	Baa1		1,800		2,076,084
NYC IDA - Yankee Stadium (AGC)	Zero Coupon		3/1/2043	AA		420		219,862
NYC IDA - Yankee Stadium (AGC)	Zero Coupon		3/1/2044	AA		640		322,266
NYC IDA - Yankee Stadium (AGC)	Zero Coupon		3/1/2047	AA		295		131,827
NYC IDA - Yankee Stadium (NPFGC)(FGIC)	2.062% (CPI Based	)#	3/1/2026	Baa1		3,450		3,544,357
Total								8,370,288
Tax Revenue 13.05%
Hudson Yards	5.75%		2/15/2047	AA-		1,030		1,036,098
MTA NY	4.00%		11/15/2035	AA		330		375,124
MTA NY	5.25%		11/15/2032	AA		650		804,785
MTA NY - Dedicated Tax	5.00%		11/15/2034	AA		1,045		1,305,780
MTA NY - Dedicated Tax	5.25%		11/15/2031	AA		1,215		1,508,228
MTA NY - Dedicated Tax	5.25%		11/15/2034	AA		455		562,212
NY Dorm - PIT	4.00%		3/15/2049	Aa2		1,695		1,995,591
NY Dorm - PIT	5.00%		3/15/2027	AA+		1,250		1,491,013
NY Dorm - PIT	5.00%		3/15/2032	Aa2		3,000		3,909,780
NY Dorm - PIT	5.00%		2/15/2042	AA+		2,055		2,535,993
NY Dorm - PIT	5.00%		3/15/2045	Aa2		2,000		2,477,820
NY Dorm - Sales Tax	5.00%		3/15/2043	AA+		2,025		2,460,881
NY St Dorm Auth - PIT	4.00%		3/15/2048	Aa2		1,900		2,173,828
NY UDC - PIT	4.00%		3/15/2045	Aa2		1,000		1,183,460
NY UDC - PIT	4.00%		3/15/2047	AA+		1,650		1,870,786
NY UDC - PIT	5.00%		3/15/2033	AA+		2,010		2,201,010
NY UDC - PIT	5.00%		3/15/2036	AA+		1,500		1,701,240
NY UDC - PIT	5.00%		3/15/2040	AA+		1,000		1,229,040
NY UDC Sales Tax	4.00%		3/15/2044	Aa2		1,250		1,468,550
NYC TFA - Future Tax	4.00%		8/1/2039	AAA		1,000		1,171,690
NYC TFA - Future Tax	4.00%		11/1/2042	AAA		1,675		1,959,800
NYC TFA - Future Tax	4.00%		5/1/2043	AAA		2,000		2,311,240

See Notes to Schedule of Investments. 137

Schedule of Investments (unaudited)(continued)

NEW YORK TAX FREE FUND December 31, 2020

Investments	Interest Rate	Maturity Date	Credit Rating: S&P or Moody’s	Principal Amount (000)		Fair Value
Tax Revenue (continued)
NYC TFA - Future Tax	5.00%	11/1/2030	AAA	$	2,075	$	2,606,241
NYC TFA - Future Tax	5.00%	11/1/2032	AAA		1,535		1,908,128
NYC TFA - Future Tax	5.00%	5/1/2035	AAA		1,230		1,516,184
NYC TFA - Future Tax	5.00%	8/1/2040	AAA		2,530		3,096,948
NYC TFA - Future Tax	5.00%	8/1/2041	AAA		2,975		3,632,713
NYC TFA - Future Tax	5.00%	8/1/2042	AAA		2,700		3,369,222
NYC TFA - Future Tax	5.00%	2/1/2043	AAA		2,510		3,014,736
NYC TFA - Future Tax	5.00%	5/1/2043	AAA		1,400		1,691,844
PR Corp Sales Tax	Zero Coupon	7/1/2029	NR		163		138,633
PR Corp Sales Tax	Zero Coupon	7/1/2031	NR		708		551,695
PR Corp Sales Tax	Zero Coupon	7/1/2033	NR		710		509,269
PR Corp Sales Tax	Zero Coupon	7/1/2051	NR		5,041		1,128,781
PR Corp Sales Tax	4.329%	7/1/2040	NR		489		531,122
PR Corp Sales Tax	4.329%	7/1/2040	NR		858		931,308
PR Corp Sales Tax	4.536%	7/1/2053	NR		64		69,587
PR Corp Sales Tax	4.55%	7/1/2040	NR		153		168,318
PR Corp Sales Tax	4.75%	7/1/2053	NR		1,199		1,320,651
PR Corp Sales Tax	4.784%	7/1/2058	NR		180		198,349
PR Corp Sales Tax	5.00%	7/1/2058	NR		1,922		2,146,682
Total							66,264,360
Tobacco 3.61%
Erie Co Tobacco	Zero Coupon	6/1/2055	NR		8,000		683,360
Erie Co Tobacco	Zero Coupon	6/1/2060	NR		20,000		966,800
Monroe Co Tobacco	Zero Coupon	6/1/2061	NR		10,000		390,400
Nassau Co Tobacco	Zero Coupon	6/1/2060	NR		15,000		741,600
Nassau CO Tobacco	5.125%	6/1/2046	B-		2,085		2,107,247
Rockland Tobacco†	Zero Coupon	8/15/2060	NR		10,575		545,882
Suffolk Tobacco Asset Sec Corp	5.00%	6/1/2032	BBB		1,335		1,381,725
Suffolk Tobacco Asset Sec Corp	5.25%	6/1/2037	BBB		1,175		1,218,663
Suffolk Tobacco Asset Sec Corp	6.00%	6/1/2048	NR		1,350		1,351,863
Suffolk Tobacco Asset Sec Corp	6.625%	6/1/2044	NR		1,000		1,034,830
TSASC	5.00%	6/1/2034	A-		1,000		1,205,530
TSASC	5.00%	6/1/2035	A-		300		360,471
TSASC	5.00%	6/1/2036	A-		100		119,749
TSASC	5.00%	6/1/2041	BBB+		510		588,285
TSASC	5.00%	6/1/2048	NR		3,300		3,534,795

138 See Notes to Schedule of Investments.

Schedule of Investments (unaudited)(continued)

NEW YORK TAX FREE FUND December 31, 2020

Investments	Interest Rate		Maturity Date	Credit Rating: S&P or Moody’s	Principal Amount (000)			Fair Value
Tobacco (continued)
Westchester Tobacco Asset Securitization Corp	5.125%		6/1/2051	B	$	1,845		$	2,084,499
Total									18,315,699
Transportation 25.03%
Buffalo & Erie PBA - Peace Bridge	5.00%		1/1/2034	A+		600			734,652
MTA NY	4.00%		11/15/2051	A3		3,000	��		3,302,370
MTA NY	4.75%		11/15/2045	A3		3,050			3,583,079
MTA NY	5.00%		11/15/2023	A3		2,860			3,026,709
MTA NY	5.00%		11/15/2028	A3		770			929,713
MTA NY	5.00%		11/15/2029	A3		1,650			1,864,285
MTA NY	5.00%		11/15/2029	A3		1,900			2,263,945
MTA NY	5.00%		11/15/2030	A3		205			243,757
MTA NY	5.00%		11/15/2030	A3		1,675			1,931,543
MTA NY	5.00%		11/15/2033	A3		1,505			1,773,101
MTA NY	5.00%		11/15/2041	A3		1,050			1,182,038
MTA NY	5.00%	#(a)	11/15/2045	A3		900			1,094,274
MTA NY	5.00%		11/15/2050	A3		1,750			2,088,905
MTA NY	5.25%		11/15/2028	A3		3,740			4,298,419
MTA NY	5.25%		11/15/2035	A3		1,170			1,281,501
MTA NY - Dedicated Tax	5.00%		11/15/2033	AA		1,520			1,905,001
Niagara Frontier Trsp - Buffalo Intl Arpt AMT	5.00%		4/1/2027	A3		1,000			1,121,610
Niagara Frontier Trsp - Buffalo Intl Arpt AMT	5.00%		4/1/2036	A3		850			1,032,521
Niagara Frontier Trsp - Buffalo Intl Arpt AMT	5.00%		4/1/2038	A3		725			875,815
Niagara Frontier Trsp - Buffalo Intl Arpt AMT	5.00%		4/1/2039	A3		350			421,827
NY Bridge Auth	4.00%		1/1/2027	Aa3		1,000			1,034,890
NY Trans Dev Corp - Delta AMT	4.00%		1/1/2036	Baa3		3,495			3,830,765
NY Trans Dev Corp - Delta AMT	5.00%		1/1/2036	Baa3		2,295			2,688,684
NY Trans Dev Corp - Delta AMT	5.00%		10/1/2040	Baa3		2,250			2,757,465
NY Trans Dev Corp - JFK IAT	4.00%		12/1/2041	Baa1		1,000			1,171,500
NY Trans Dev Corp - JFK IAT AMT	4.00%		12/1/2041	Baa1		1,710			1,975,101
NY Trans Dev Corp - LaGuardia Airport AMT	4.00%		7/1/2031	Baa3		2,000			2,132,280
NY Trans Dev Corp - LaGuardia Airport AMT	4.00%		7/1/2046	Baa3		2,050			2,142,885

See Notes to Schedule of Investments. 139

Schedule of Investments (unaudited)(continued)

NEW YORK TAX FREE FUND December 31, 2020

Investments	Interest Rate	Maturity Date	Credit Rating: S&P or Moody’s	Principal Amount (000)		Fair Value
Transportation (continued)
NY Trans Dev Corp - LaGuardia Airport AMT	5.25%	1/1/2050	Baa3	$	12,280	$	13,520,157
NY Trans Dev Corp - TOGA AMT	5.00%	1/1/2023	Baa3		1,500		1,618,260
NY Twy Auth	4.00%	1/1/2041	A2		1,000		1,184,370
NY Twy Auth	5.00%	1/1/2032	A1		150		191,111
NY Twy Auth	5.00%	1/1/2036	A1		1,760		1,976,762
NY Twy Auth (AGM)	3.00%	1/1/2046	AA		1,000		1,061,230
NY Twy Auth TCRS (BAM)	4.00%	1/1/2050	AA		2,500		2,926,225
Port Auth NY & NJ	4.00%	7/15/2036	Aa3		2,020		2,457,593
Port Auth NY & NJ	5.00%	11/15/2042	Aa3		1,365		1,681,052
Port Auth NY & NJ - JFK IAT	5.50%	12/1/2031	Baa1		295		295,392
Port Auth NY & NJ - JFK IAT	6.00%	12/1/2036	Baa1		1,185		1,186,730
Port Auth NY & NJ - JFK IAT	6.00%	12/1/2042	Baa1		1,190		1,191,737
Port Auth NY & NJ - JFK IAT CR (AGM)	5.50%	12/1/2031	A2		225		225,304
Port Auth NY & NJ - JFK IAT CR (AGM)	6.00%	12/1/2036	A2		400		400,588
Port Auth NY & NJ - JFK IAT CR (AGM)	6.00%	12/1/2042	NR		1,615		1,617,374
Port Auth NY & NJ AMT	4.00%	9/1/2043	Aa3		3,650		4,218,706
Port Auth NY & NJ AMT	4.00%	11/1/2047	Aa3		4,000		4,596,840
Port Auth NY & NJ AMT	4.00%	11/1/2059	Aa3		800		911,120
Port Auth NY & NJ AMT	5.00%	10/15/2027	Aa3		1,485		1,864,343
Port Auth NY & NJ AMT	5.00%	9/15/2028	Aa3		1,000		1,273,660
Port Auth NY & NJ AMT	5.00%	11/15/2031	Aa3		3,415		4,264,379
Port Auth NY & NJ AMT	5.00%	9/1/2032	Aa3		805		1,040,768
Port Auth NY & NJ AMT	5.00%	11/15/2032	Aa3		2,850		3,438,639
Port Auth NY & NJ AMT	5.00%	9/15/2033	Aa3		2,820		3,501,397
Port Auth NY & NJ AMT	5.00%	10/1/2033	Aa3		3,200		3,355,648
Port Auth NY & NJ AMT	5.00%	10/15/2033	Aa3		1,000		1,217,960
Port Auth NY & NJ AMT	5.00%	9/15/2034	Aa3		1,000		1,238,600
Port Auth NY & NJ AMT	5.00%	4/1/2036	Aa3		1,050		1,251,233
Port Auth NY & NJ AMT	5.00%	10/15/2041	Aa3		1,250		1,285,550
Port Auth NY & NJ AMT	5.00%	9/15/2048	Aa3		365		438,000
Triborough Brdg & Tunl Auth	4.00%	11/15/2044	AA-		2,145		2,499,847
Triborough Brdg & Tunl Auth	4.00%	11/15/2048	AA-		2,015		2,302,279
Triborough Brdg & Tunl Auth	5.00%	11/15/2038	AA-		1,000		1,230,320
Triborough Brdg & Tunl Auth	5.00%	11/15/2047	AA-		1,135		1,373,918
Triborough Brdg & Tunl Auth	5.00%	11/15/2054	AA-		1,200		1,540,092
Total							127,065,819

140 See Notes to Schedule of Investments.

Schedule of Investments (unaudited)(continued)

NEW YORK TAX FREE FUND December 31, 2020

Investments	Interest Rate	Maturity Date	Credit Rating: S&P or Moody’s		Principal Amount (000)		Fair Value
Utilities 8.10%
Buffalo Muni Wtr Fin Auth (AGM)	5.00%	7/1/2043	AA		$	600	$	719,220
Buffalo Muni Wtr Fin Auth (AGM)	5.00%	7/1/2048	AA			1,750		2,091,565
Guam Pwr Auth	5.00%	10/1/2021	BBB			500		514,115
Guam Waterworks Auth	5.00%	7/1/2036	A-			400		466,292
Guam Waterworks Auth	5.00%	1/1/2050	A-			600		745,758
Long Island Power Auth	5.00%	9/1/2025	A			1,000		1,075,330
Long Island Power Auth	5.00%	9/1/2034	A			2,000		2,306,180
Long Island Power Auth	5.00%	9/1/2039	A			1,000		1,145,290
Long Island Power Auth	5.00%	9/1/2047	A			1,115		1,365,072
Long Island Power Auth (AGC)	5.25%	9/1/2029	AA			2,000		2,710,980
New York St Pwr Auth	4.00%	11/15/2045	AA			1,325		1,577,611
NY Elec Sys - LIPA	4.00%	9/1/2038	A			1,500		1,771,710
NY Elec Sys - LIPA	4.00%	9/1/2039	A			1,000		1,178,820
NYC Muni Water	4.00%	6/15/2049	AA+			2,985		3,448,481
NYC Muni Water	5.00%	6/15/2035	AA+			1,550		1,718,532
NYC Muni Water	5.00%	6/15/2035	AA+			1,675		1,927,439
NYC Muni Water	5.00%	6/15/2036	AA+			1,750		2,011,153
NYC Muni Water	5.00%	6/15/2036	AA+			2,250		2,585,767
NYC Muni Water	5.00%	6/15/2040	AA+			1,250		1,579,950
NYC Muni Water	5.00%	6/15/2046	AA+			3,140		3,884,054
NYC Muni Water	5.00%	6/15/2048	AA+			1,675		2,097,067
NYC Muni Water	5.25%	6/15/2037	AA+			1,500		1,902,240
NYC Muni Water	5.25%	6/15/2047	AA+			1,000		1,256,200
PR Elec Pwr Auth(c)	5.75%	7/1/2036	D	(b)		1,250		1,021,875
Total								41,100,701
Total Municipal Bonds (cost $470,697,832)								502,241,763

See Notes to Schedule of Investments. 141

Schedule of Investments (unaudited)(concluded)

NEW YORK TAX FREE FUND December 31, 2020

Investments	Interest Rate#	Interest Rate Reset Date(e)	Final Maturity Date	Credit Rating: S&P or Moody’s	Principal Amount (000)		Fair Value
SHORT-TERM INVESTMENT 0.47%
Variable Rate Demand Notes 0.47%
General Obligation
NYC GO (cost $2,395,000)	0.08%	1/4/2021	12/1/2047	AA	$	2,395	$	2,395,000
Total Investments in Securities 99.40% (cost $473,092,832)								504,636,763
Cash and Other Assets in Excess of Liabilities 0.60%								3,047,077
Net Assets 100.00%							$	507,683,840

AGC	Insured by - Assured Guarantee Corp.
AGM	Insured by - Assured Guaranty Municipal Corporation.
AMBAC	Insured by - AMBAC Assurance Corporation.
AMT	Income from the security may be subject to Alternative Minimum Tax.
BAM	Insured by - Build America Mutual.
CPI	Consumer Price Index: Rate fluctuate based on CPI.
FGIC	Insured by - Financial Guaranty Insurance Company.
NPFGC	Insured by - National Public Finance Guarantee Corporation.
NR	Not Rated.
SIFMA	Insured by - Securities Industry and Financial Markets Association.
TCRS	Transferable Custodial Receipts.
TRIPS	Tax Refund Intercept Programs.

†	Security was purchased pursuant to Rule 144A under the Securities Act of 1933 and, unless registered under such Act or exempted from registration, may only be resold to qualified institutional buyers. At December 31, 2020, the total value of Rule 144A securities was $18,614,967, which represents 3.67% of net assets.
#	Variable rate security. The interest rate represents the rate in effect at December 31, 2020.
(a)	Variable Rate is Fixed to Float: Rate remains fixed or at Zero Coupon until designated future date.
(b)	This investment has been rated by Fitch IBCA.
(c)	Defaulted (non-income producing security).
(d)	Securities purchased on a when-issued basis.
(e)	The interest rate reset date shown represents the date in which the Fund has the right to sell a Variable Rate Demand Note (“VRDN”) back to the issuer for Principal Amount. The interest rate on the VRDN is generally reset daily based on the SIFMA Municipal Swap Index.

The following is a summary of the inputs used as of December 31, 2020 in valuing the Fund’s investments carried at fair value⁽¹⁾:

Investment Type(2)	Level 1		Level 2		Level 3		Total
Municipal Bonds	$	-	$	502,241,763	$	-	$	502,241,763
Short-Term Investment
Variable Rate Demand Notes		-		2,395,000		-		2,395,000
Total	$	-	$	504,636,763	$	-	$	504,636,763

(1)	Refer to Note 2(b) for a description of fair value measurements and the three-tier hierarchy of inputs.
(2)	See Schedule of Investments for fair values in each industry.

A reconciliation of Level 3 investments is presented when the Fund has a material amount of Level 3 investments at the beginning or end of the period in relation to the Fund’s net assets.

142 See Notes to Schedule of Investments.

Notes to Schedule of Investments (unaudited)

1. ORGANIZATION 

Lord Abbett Municipal Income Fund, Inc. (the “Company”) is registered under the Investment Company Act of 1940, as amended (the “Act”), as an open-end management investment company. The Company was organized as a Maryland corporation on December 27, 1983.

The Company currently consists of the following eight funds (separately, a “Fund” and collectively, the “Funds”) their respective active share classes:

Funds
Lord Abbett Short Duration Tax Free Fund (“Short Duration”)	A, C, F, F3 and I
Lord Abbett Intermediate Tax Free Fund (“Intermediate”)	A, C, F, F3 and I
Lord Abbett National Tax Free Income Fund (“National”)	A, C, F, F3 and I
Lord Abbett High Yield Municipal Bond Fund (“High Yield”)	A, C, F, F3 and I
Lord Abbett Short Duration High Yield Municipal Bond Fund (“Short Duration High Yield”)	A, C, F, F3 and I
Lord Abbett California Tax Free Income Fund (“California”)	A, C, F, F3 and I
Lord Abbett New Jersey Tax Free Income Fund (“New Jersey”)	A, F, F3 and I
Lord Abbett New York Tax Free Income Fund (“New York”)	A, C, F, F3 and I

Short Duration, Intermediate and National are diversified as defined in the Act. High Yield, Short Duration High Yield, California, New Jersey and New York are non-diversified as defined in the Act.

The investment objective of each Fund (except for High Yield and Short Duration High Yield) is to seek the maximum amount of interest income exempt from federal income tax as is consistent with reasonable risk. The investment objective of High Yield and Short Duration High Yield is to seek a high level of income exempt from federal income tax. Each of California, New Jersey and New York also seeks as high a level of interest income exempt from the personal income tax of its corresponding state as is consistent with reasonable risk. In addition, New York seeks as high a level of interest income exempt from New York City personal income tax as is consistent with reasonable risk.

2. SIGNIFICANT ACCOUNTING POLICIES 

(a)	Investment Valuation-Under procedures approved by the Funds’ Board of Directors (the “Board”), Lord, Abbett & Co. LLC (“Lord Abbett”), each Fund’s investment manager, has formed a Pricing Committee to administer the pricing and valuation of portfolio investments and to ensure that prices utilized reasonably reflect fair value. Among other things, these procedures allow the Funds to utilize independent pricing services, quotations from securities and financial instrument dealers and other market sources to determine fair value.
	Securities are valued based on evaluated prices supplied by independent pricing services, which reflect broker/dealer supplied valuations and the independent pricing services’ own electronic data processing techniques. Exchange traded options and futures contracts are valued at the last sale price in the market where they are principally traded. If no sale has occurred, the mean between the most recently quoted bid and asked prices is used.
	Securities for which prices are not readily available are valued at fair value as determined by the Pricing Committee. The Pricing Committee considers a number of factors, including observable and unobservable inputs, when arriving at fair value. The Pricing Committee may

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Notes to Schedule of Investments (unaudited)(continued)

	use observable inputs such as yield curves, broker quotes, observable trading activity, option adjusted spread models and other relevant information to determine the fair value of portfolio investments. The Board or a designated committee thereof regularly reviews fair value determinations made by the Pricing Committee and may employ techniques such as reviewing related market activity, reviewing inputs and assumptions, and retrospectively comparing prices of subsequent purchases and sales transactions to fair value determinations made by the Pricing Committee.
	Investments in open-end money market mutual funds are valued at their net asset value (“NAV”) as of the close of each business day. Short-term securities with 60 days or less remaining to maturity are valued using the amortized cost method, which approximates fair value.
(b)	Fair Value Measurements-Fair value is defined as the price that each Fund would receive upon selling an investment or transferring a liability in an orderly transaction to an independent buyer in the principal or most advantageous market of the investment. A three-tier hierarchy is used to maximize the use of observable market data and minimize the use of unobservable inputs and to establish classification of fair value measurements for disclosure purposes. Inputs refer broadly to the assumptions that market participants would use in pricing the asset or liability, including assumptions about risk - for example, the risk inherent in a particular valuation technique used to measure fair value (such as a pricing model) and/or the risk inherent in the inputs to the valuation technique. Inputs may be observable or unobservable. Observable inputs reflect the assumptions market participants would use in pricing the asset or liability. Observable inputs are based on market data obtained from sources independent of the reporting entity. Unobservable inputs reflect the reporting entity’s own assumptions about the assumptions market participants would use in pricing the asset or liability. Unobservable inputs are based on the best information available in the circumstances. The three-tier hierarchy classification is determined based on the lowest level of inputs that is significant to the fair value measurement, and is summarized in the three broad Levels listed below:

•	Level 1 -	unadjusted quoted prices in active markets for identical investments;
•	Level 2 -	other significant observable inputs (including quoted prices for similar investments, interest rates, prepayment speeds, credit risk, etc.); and
•	Level 3 -	significant unobservable inputs (including each Fund’s own assumptions in determining the fair value of investments).

A summary of inputs used in valuing each Fund’s investments and other financial instruments as of December 31, 2020 and, if applicable, Level 3 rollforwards for the period then ended is included in each Fund’s Schedule of Investments.

Changes in valuation techniques may result in transfers into or out of an assigned level within the three-tier hierarchy. The inputs or methodology used for valuing securities are not necessarily an indication of the risk associated with investing in those securities.

3. FEDERAL TAX INFORMATION 

It is the policy of each Fund to meet the requirements of Subchapter M of the Internal Revenue Code applicable to regulated investment companies and to distribute substantially all taxable income and capital gains to its shareholders. Therefore, no income tax provision is required.

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Notes to Schedule of Investments (unaudited)(concluded)

Each Fund files U.S. federal and various state and local tax returns. No income tax returns are currently under examination. The statute of limitations on each Fund’s filed U.S. federal tax returns remains open generally three years after the filing of the tax return. The statutes of limitations on each Fund’s, state and local tax returns may remain open for an additional year depending upon the jurisdiction.

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QPHR-MUNI-1Q

(02/21)