1 EXHIBIT 11 STATEMENT RE COMPUTATION OF PER SHARE EARNINGS Year Ended December 31, ------------------------------------------------ (Dollars in thousands except per share amounts.) 1998 1997 1996 ------ ------ ------ Basic Earning per Share Average shares outstanding 53,285 50,769 48,218 ======= ======= ======= Income available to common shareholders $54,477 $50,202 $47,335 ======= ======= ======= Basic Earnings per Share $ 1.02 $ 0.99 $ 0.98 ======= ======= ======= Diluted Earnings per Share Average common shares outstanding 53,285 50,769 48,218 Effect of dilutive stock options 586 422 329 ------- ------- ------- Average diluted shares outstanding 53,871 51,191 48,547 ======= ======= ======= Income available to common shareholders $54,477 $50,202 $47,335 ======= ======= ======= Diluted Earnings per Share $ 1.01 $ 0.98 $ 0.98 ======= ======= =======