Exhibit 12 COMPUTATIONS OF RATIOS OF EARNINGS TO FIXED CHARGES Three months ended December 31 (Dollars in thousands) 2000 1999 - -------------------------------------------------------------------------------- Income before taxes $196,664 $180,950 Add fixed charges: Interest expense 6,096 6,154 Interest factor on rent 4,303 4,436 ------------------------------------------ Total fixed charges $10,399 $10,590 ------------------------------------------ Earnings before fixed charges and taxes on income $207,063 $191,540 ========================================== Ratio of earnings to fixed charges 19.9 18.1