Exhibit 12 COMPUTATIONS OF RATIOS OF EARNINGS TO FIXED CHARGES For three months For six months ended ended March 31 March 31 (Dollars and shares in thousands) 1996 1995 1996 1995 -------- -------- --------- --------- Income before taxes $108,262 $92,634 $215,437 $185,065 Add fixed charges: Interest expense 7,537 7,353 14,902 14,440 Interest factor on rent 2,063 1,905 3,950 3,398 -------- -------- ---------- --------- Total fixed charges 9,600 9,258 18,852 17,838 Earnings before fixed charges and taxes on income $117,862 $101,892 $234,289 $202,903 ======== ======== ========= ========= Ratio of earnings to fixed charges 12.3 11.0 12.4 11.4 ======== ======== ========= =========