Exhibit 12 COMPUTATIONS OF RATIOS OF EARNINGS TO FIXED CHARGES Three months ended Nine months ended June 30 June 30 (Dollars in thousands) 1999 1998 1999 1998 - -------------------------------------------------------------------------------- Income before taxes $163,857 $177,131 $399,819 $524,590 Add fixed charges: Interest expense 7,443 10,932 23,623 29,897 Interest factor on rent 3,416 3,127 10,409 8,957 -------------------------------------------------- Total fixed charges $10,859 $14,059 $34,032 $38,854 -------------------------------------------------- Earnings before fixed charges and taxes on income $174,716 $191,190 $433,851 $563,44 ================================================== Ratio of earnings to fixed charges 16.1 13.6 12.7 14.5