Exhibit 11 Statement Regarding Computation of Per Share Earnings Three Months Nine Months Ended Ended September 30, September 30, 1997 1996 1997 1996 ------- ------- ------- ------- (In Thousands, Except Per Share Data) Primary net income per share Net income as reported . . . . . $12,938 $ 9,007 $33,723 $36,438 Weighted average number of common shares outstanding . 18,230 18,179 18,199 18,747 Common stock equivalents. . . . . 284 107 176 248 ------- ------- ------- ------- Primary shares. . . . . . . . . . 18,514 18,286 18,375 18,995 ------- ------- ------- ------- Primary net income per share . . . $ .70 $ .49 $ 1.84 $ 1.92 ======= ======= ======= ======= Fully diluted net income per share Net income as reported . . . . . $12,938 $ 9,007 $33,723 $36,438 Weighted average number of common shares outstanding. 18,230 18,179 18,199 18,747 Common stock equivalents . . . . 359 107 176 248 ------- ------- ------- ------- Fully diluted shares . . . . . . 18,589 18,286 18,375 18,995 ------- ------- ------- ------- Fully diluted net income per share $ .70 $ .49 $ 1.84 $ 1.92 ======= ======= ======= =======