1 EXHIBIT 11 COMPUTATION OF PER SHARE EARNINGS Year Ended December 31, 2000 1999 1998 - -------------------------------------------------------------------------------------------------- BASIC Net earnings before extraordinary item $ 82,252 $ 66,695 $ 43,592 Extraordinary item, net of tax -- -- (3,326) ------------ ------------ ------------ Net earnings 82,252 66,695 40,266 Adjustment for dividends on convertible preferred shares (694) (831) (1,000) ------------ ------------ ------------ Net earnings applicable to common stockholders $ 81,558 $ 65,864 $ 39,266 Weighted-average common shares outstanding 13,172,793 14,678,925 14,709,404 Net earnings per share before extraordinary item $ 6.19 $ 4.49 $ 2.90 Extraordinary item -- -- (0.23) ------------ ------------ ------------ Net earnings per share $ 6.19 $ 4.49 $ 2.67 ============ ============ ============ DILUTED Net earnings before extraordinary item $ 82,252 $ 66,695 $ 43,592 Extraordinary item, net of tax -- -- (3,326) ------------ ------------ ------------ Net earnings 82,252 66,695 40,266 Adjustment for dividends on convertible preferred shares -- -- -- ------------ ------------ ------------ Net earnings applicable to common stockholders 82,252 66,695 40,266 ============ ============ ============ Weighted-average common shares outstanding 13,172,793 14,678,925 14,709,404 Common stock equivalents: Stock options 315,560 292,580 316,640 Equity incentive plan 83,883 149,622 113,894 Conversion of preferred shares (1) 321,126 384,255 463,374 ------------ ------------ ------------ Total 13,893,362 15,505,382 15,603,312 ============ ============ ============ Net earnings per share before extraordinary item $ 5.92 $ 4.30 $ 2.79 Extraordinary item -- -- (0.21) ------------ ------------ ------------ Net earnings per share $ 5.92 $ 4.30 $ 2.58 ============ ============ ============ (1) The assumed conversion of preferred shares was dilutive for the years ended December 31, 2000, 1999 and 1998. 24