Exhibit 11. Statement Re Computation of Per Share Earnings ($ in thousands, except per share amounts) Years ended December 31, 1997 1996 1995 Basic earnings per share: Net earnings $15,116 $14,128 $10,981 Deduct dividends on preferred stock 2,517 2,529 2,535 Net earnings applicable to common stock $12,599 $11,599 $ 8,446 Shares: Weighted average number of common shares outstanding 14,768 14,734 14,756 Basic earnings per share $ 0.85 $ 0.79 $ 0.57 Diluted earnings per share: Net earnings applicable to common stock $ 12,599 $ 11,599 $ 8,446 Shares: Weighted average number of common shares outstanding 14,768 14,734 14,756 Dilutive effect of outstanding options and rights (as determined by the application of the treasury stock method at the average market price for the year) 67 160 119 Weighted average number of shares outstanding, as adjusted 14,835 14,894 14,875 Diluted earnings per share $ 0.85 $ 0.78 $ 0.57 11-1