Exhibit 11 COMPUTATIONS OF PER SHARE EARNINGS Earnings per share are based on net income divided by the average number of shares outstanding including common stock equivalents during the period. Three months ended Nine months ended June 30 June 30 (Dollars and shares in thousands) 1996 1995 1996 1995 Average outstanding shares 80,350 81,053 80,506 81,344 Common stock equivalents Primary 2,682 1,487 2,729 1,487 Fully diluted 3,015 1,926 3,015 1,926 Total shares Primary 83,032 82,540 83,235 82,830 Fully diluted 83,365 82,979 83,521 83,269 Net income $81,066 $69,029 $230,229 $195,373 Earnings per share: Primary $0.98 $0.84 $2.77 $2.36 Fully diluted $0.97 $0.83 $2.76 $2.35