EXHIBIT 11 STATEMENT RE: COMPUTATION OF PER SHARE EARNINGS YEAR ENDED SEPTEMBER 30, ------------------------------ 1997 1996 ------------- -------------- (IN THOUSANDS, EXCEPT PER SHARE DATA) Net Income................................... $49,420 $32,275 Weighted average common shares outstanding 22,443 23,116 Common stock equivalents due to dilutive effect of stock option.................. 1,152 1,104 Total weighted average common shares and equivalents outstanding............................. 23,595 24,220 Primary earnings per common and common share equivalents............................. $2.09 $1.33 Total weighted average common shares and equivalents outstanding................. 23,595 24,220 Additional dilutive shares using ending period market value versus average market value for the period when utilizing the treasury stock method regarding stock options........................... 160 57 Total shares for fully diluted earnings per share............................... 23,755 24,277 Fully diluted earnings per common and common share equivalents................ $2.08 $1.33