Exhibit 11 - Statement re: Computation of Earnings Per Share Three Months Ended Six Months Ended June 30, June 30, 1997 1996 1997 1996 (dollars in millions, except per share data and shares in thousands) Primary: Average shares outstanding 74,799 74,402 74,762 74,269 Net effect of dilutive stock options - based on the treasury stock method using average market price 994 950 915 838 Total 75,793 75,352 75,677 75,107 Net Income $ 46.3 $ 47.1 $ 73.9 $ 69.1 Dividend requirement on preferred stock 1.1 1.1 2.2 2.2 Net income applicable to common shares $ 45.2 $ 46.0 $ 71.7 $ 66.9 Net income per common share: $ 0.60 $ 0.61 $ 0.95 $ 0.89 Fully Diluted: Average common shares outstanding 74,799 74,402 74,762 74,269 Net effect of dilutive stock options - based on the treasury stock method using the period-end market price, if higher than average market price 1,135 952 1,069 922 Assumed conversion of 5% cumulative preferred stock 3,319 3,320 3,320 3,320 Total 79,253 78,674 79,151 78,511 Net income $ 46.3 $ 47.1 $ 73.9 $ 69.1 Net income per common share $ 0.58 $ 0.60 $ 0.93 $ 0.88