1 Exhibit 12.1 RATIO OF EARNINGS TO FIXED CHARGES Pro forma 12 mos. 9/30/92 9/30/93 12/31/93 12/31/94 12/31/95 12/31/96 6/30/96 6/30/97 8/30/97 ------------------------------------------------------------------------------------- Earnings to fixed charges 6.114 5.649 5.640 2.690 3.103 1.650 1.845 1.897 1.5637 ===================================================================================== Fixed charges: Interest expenses 1,192 750 30 3,379 3,958 8,303 3,513 5,885 14,261 Interest capitalized - 629 234 227 1,850 2,313 1,031 1,804 944 Interest component of rent expense 30 34 12 205 140 221 85 179 316 ------------------------------------------------------------------------------------- Total fixed charges 1,222 1,413 276 3,811 5,948 10,837 4,629 7,868 15,521 ===================================================================================== Earnings: Income before income taxes 6,247 7,199 1,500 6,646 14,331 9,287 4,925 8,828 9,603 Add back fixed charges, less interest capitalized during the period 1,222 784 42 3,584 4,098 8,524 3,598 6,604 14,577 Add current period amortization of cap interest - - 16 22 28 75 19 34 90 Total earnings ------------------------------------------------------------------------------------- 7,469 7,983 1,558 10,252 18,457 17,887 8,542 14,926 24,270 ===================================================================================== Interest component of rent expense: Rent expenses 89 103 37 616 420 664 254 537 947 Portion assumed to represent interest (per AA LLP) 0.33 0.33 0.33 0.33 0.33 0.33 0.33 0.33 0.33 ------------------------------------------------------------------------------------- Interest component of rents 30 34 12 205 140 221 85 179 316 ===================================================================================== Amortization of capitalized interest: Interest capitalized 0 629 234 227 1,850 2,313 1,031 1,804 Assumed depreciation (Cumulative capitalized interest/39 years) 0 16.13 22.13 27.95 75.38 18.85 33.67 90.21 ===================================================================================== ____________________________________________________________________________________________________________________________________ (I) (II) (III) (I)-(II)+(III) 12 MOS 8 MOS 6 MOS 12 MOS 12/31/96 6/30/96 6/30/97 6/30/97 ------------------------------------------------ CALCULATION OF PRO FORMA INCOME BEFORE TAXES: INCOME BEFORE TAXES 9,287 4,926 8,828 13,189 ADD ACTUAL INTEREST EXPENSE 8,303 3,513 5,885 10,675 LESS PRO FORMA INTEREST EXPENSE (14,261) PRO FORMA INCOME BEFORE TAXES --------- 9,603 =========