EXHIBIT 12.1 STATEMENT RE: COMPUTATION OF RATIO OF EARNINGS TO FIXED CHARGES AND RATIO OF EARNINGS TO COMBINED FIXED CHARGES YEAR ENDED DECEMBER 31, ---------------------------------------------------- 2000 1999 1998 1997 1996 -------- -------- -------- -------- -------- Earnings before fixed charges Income before extraordinary item $181,583 $155,993 $116,677 $ 68,969 $ 37,631 Add: Interest expense 104,229 94,712 74,155 46,521 33,967 Depreciation expense on capitalized interest 1,809 1,396 1,001 650 502 Amortization of deferred financing costs 4,066 4,951 4,462 4,448 4,561 -------- -------- -------- -------- -------- Earnings before fixed charges $291,687 $257,052 $196,295 $120,588 $ 76,661 ======== ======== ======== ======== ======== Fixed charges: Interest expense 104,229 94,712 74,155 46,521 33,967 Amortization of deferred financing charges 4,066 4,951 4,462 4,448 4,561 Capitalized interest 17,784 15,288 16,317 11,802 7,708 -------- -------- -------- -------- -------- Fixed charges $126,079 $114,951 $ 94,934 $ 62,771 $ 46,236 -------- -------- -------- -------- -------- Preferred share distributions 11,000 11,000 11,000 4,247 - Preferred unit distributions 10,070 3,783 - - - -------- -------- -------- -------- -------- Combined fixed charges $147,149 $129,734 $105,934 $ 67,018 $ 46,236 ======== ======== ======== ======== ======== Ratio of earnings to fixed charges 2.31 2.24 2.07 1.92 1.66 ======== ======== ======== ======== ======== Ratio of earnings to combined fixed charges 1.98 1.98 1.85 1.80 1.66 ======== ======== ======== ======== ======== Certain amounts from prior periods have been restated to conform to current-year presentation.