COMPUTATION OF EARNINGS PER COMMON SHARE (UNAUDITED) (IN THOUSANDS, EXCEPT PER SHARE AMOUNTS) THREE MONTHS ENDED SIX MONTHS ENDED JUNE 30, JUNE 30, 1999 2000 1999 2000 ------------ ------------ ------------- ------------- BASIC EARNINGS Income before the cumulative effect of a change in accounting principles and extraodinary items .............. $ 16,264 $ 24,397 $ 27,780 $ 35,154 Cumulative effect of a change in in accounting principles ..................................... -- -- (5,315) -- -------- -------- -------- -------- Income before extraordinary items .............................. 16,264 24,397 22,465 35,154 Extraordinary items ............................................ -- -- -- (302) -------- -------- -------- -------- Net earnings ................................................... $ 16,264 $ 24,397 $ 22,465 $ 34,852 ======== ======== ======== ======== Shares: Weighted average number of common shares outstanding ......................................... 51,321 45,120 51,829 46,536 ======== ======== ======== ======== Basic earnings per common share: Income before the cumulative effect of a change in accounting principles and extraodinary items ............ $ 0.32 $ 0.54 $ 0.54 $ 0.75 Cumulative effect of a change in accounting principles ........................................ -- -- (0.10) -- Extraordinary items ............................................ -- -- -- -- -------- -------- -------- -------- Net earnings ............................................... $ 0.32 $ 0.54 $ 0.44 $ 0.75 ======== ======== ======== ======== DILUTED EARNINGS Income before the cumulative effect of a change in accounting principles and extraodinary items .............. $ 16,264 $ 24,397 $ 27,780 35,154 Cumulative effect of a change in accounting principles ........................................ -- -- (5,315) -- -------- -------- -------- -------- Income before extraordinary items .............................. 16,264 24,397 22,465 35,154 Extraordinary items ............................................ -- -- -- (302) -------- -------- -------- -------- Net earnings as adjusted ................................... $ 16,264 $ 24,397 $ 22,465 $ 34,852 ======== ======== ======== ======== Shares: Weighted average number of common shares outstanding ......................................... 51,321 45,120 51,829 46,536 Options issued ............................................... 1,653 733 1,447 695 -------- -------- -------- -------- Weighted average number of common shares outstanding as adjusted ............................... 52,974 45,853 53,276 47,231 ======== ======== ======== ======== Diluted earnings per common share: Income before the cumulative effect of a change in accounting principles ................................... $ 0.31 $ 0.53 $ 0.52 $ 0.74 Cumulative effect of a change in accounting principles ........................................ -- -- (0.10) -- Extraordinary items ............................................ -- -- -- -- -------- -------- -------- -------- Net earnings ................................................. $ 0.31 $ 0.53 $ 0.42 $ 0.74 ======== ======== ======== ========