EXHIBIT 12 COMPUTATION OF RATIO OF EARNINGS TO FIXED CHARGES FOR THE FIVE YEARS ENDED JUNE 30, 2002 AND FOR THE THREE MONTHS ENDED SEPTEMBER 30, 2002 <Table> <Caption> Fiscal Year Ended June 30, Three Months ---------------------------------------------------------------------- Ended ($'s in millions) 1998 1999 2000 2001 2002 September 30, 2002 --------- -------- ----------- ----------- ----------- ------------------ Earnings from continuing operations before income taxes $ 734.4 $ 821.7 $ 1,141.9 $ 1,332.2 $ 1,701.3 $ 436.9 Add-Fixed Charges: Interest Expense $ 110.6 $ 118.0 $ 142.7 $ 158.1 $ 134.2 $ 30.6 Interest Capitalized 1.7 4.5 1.6 2.7 3.9 1.2 Amortization of Debt Offering Costs 0.9 1.6 1.6 2.3 3.1 0.8 Interest Portion of Rent Expense 25.3 28.6 33.7 37.5 32.9 9.4 --------- -------- ----------- ----------- ----------- ----------- Total Fixed Charges $ 138.5 $ 152.7 $ 179.6 $ 200.6 $ 174.1 $ 42.0 Less: Interest Capitalized (1.7) (4.5) (1.6) (2.7) (3.9) (1.2) --------- -------- ----------- ----------- ----------- ----------- Earnings as Adjusted $ 871.2 $ 969.9 $ 1,319.9 $ 1,530.1 $ 1,871.5 $ 477.7 ========= ======== =========== =========== =========== =========== Ratio of Earnings to Fixed Charges 6.3 6.4 7.3 7.6 10.7 11.4 </Table>