EXHIBIT 11 The following presents the computation of per share earnings reflecting the assumption that the granted shares under the 1988 Stock Option Plan will be exercised. (IN THOUSANDS EXCEPT PER SHARE DATA) Third Quarter First Nine Months ------------- ----------------- 1999 1998 1999 1998 ---- ---- ---- ---- Net Earnings $ 3,744 $ 3,735 $ 10,157 $ 9,305 ======================== ======================== Weighted average common shares outstanding 7,344 7,357 7,350 7,357 Common share equivalents relating to stock options 1 1 1 1 ------------------------ ------------------------ Adjusted common and common equivalent shares for computation 7,345 7,358 7,351 7,358 ======================== ======================== Net earnings per share: Basic $ 0.51 $ 0.50 $ 1.38 $ 1.26 ======================== ======================== Diluted $ 0.51 $ 0.50 $ 1.38 $ 1.26 ======================== ========================