EXHIBIT 12.1 STATEMENT OF COMPUTATION OF RATIO OF EARNINGS TO FIXED CHARGES FOR THE YEARS ENDED DECEMBER 31, PRO FORMA ------------------------------------------------------------- MARCH 31, MARCH 31, 1997 1998 1999 2000 2001 2002 2002 --------- --------- --------- --------- --------- --------- --------- EARNINGS: Pre-tax income $ 28,312 $ 50,989 $ 94,176 $ 75,707 $ 22,238 $ 11,224 $ 10,624 Fixed charges 10,528 26,338 94,864 128,079 119,055 31,753 31,133 Less: Preferred stock dividends -- (3,234) (4,144) (4,144) (4,144) (1,036) (1,036) Less: Capitalized interest -- (262) -- -- -- -- -- --------- --------- --------- --------- --------- --------- --------- Net fixed charges 10,528 22,842 90,720 123,935 114,911 30,717 30,097 --------- --------- --------- --------- --------- --------- --------- EARNINGS $ 38,840 $ 73,831 $ 184,896 $ 199,642 $ 137,149 $ 41,941 $ 40,721 ========= ========= ========= ========= ========= ========= ========= FIXED CHARGES: Interest expense $ 9,330 $ 20,267 $ 81,633 $ 112,433 $ 100,817 $ 22,546 $ 22,536 Preferred stock dividends -- 3,234 4,144 4,144 4,144 1,036 1,036 Capitalized interest -- 262 -- -- -- -- -- Amortization of debt costs 329 865 4,930 6,254 6,698 1,756 1,146 Interest factor of rental expense 869 1,710 4,157 5,248 7,396 6,415 6,415 --------- --------- --------- --------- --------- --------- --------- TOTAL FIXED CHARGES $ 10,528 $ 26,338 $ 94,864 $ 128,079 $ 119,055 $ 31,753 $ 31,133 ========= ========= ========= ========= ========= ========= ========= RATIO OF EARNINGS TO FIXED CHARGES 3.7 2.8 1.9 1.6 1.2 1.3 1.3 ========= ========= ========= ========= ========= ========= =========