EXHIBIT 12. RATIO OF EARNINGS TO FIXED CHARGES (in thousands of dollars) For the three months ended For the years ended June 30, Sept. 30, 1999 1999 1998 1997 1996 1995 Pretax income from continuing operations $ 39,805 $ 197,719 $ 231,138 $ 171,941 $ 123,721 $ 55,768 Distribution of earnings from unconsolidated affiliates - 840 602 1,509 690 738 Fixed charges 12,002 57,744 64,881 65,827 69,543 69,819 --------------------------------------------------------------------------------- Earnings $ 51,807 $ 256,303 $ 296,621 $ 239,277 $ 193,954 $ 126,325 Interest $ 11,776 $ 56,837 $ 63,974 $ 64,886 $ 68,754 $ 69,585 Amortization of premiums and other 226 907 907 941 789 234 --------------------------------------------------------------------------------- Fixed Charges $ 12,002 $ 57,744 $ 64,881 $ 65,827 $ 69,543 $ 69,819 Ratio of Earnings to Fixed Charges 4.32 4.44 4.57 3.63 2.79 1.81