<ARTICLE> 5 <MULTIPLIER> 1,000 <PERIOD-TYPE> 12-MOS <FISCAL-YEAR-END> MAR-31-2000 <PERIOD-END> MAR-31-2000 <CASH> 16,900 <SECURITIES> 0 <RECEIVABLES> 349,800 <ALLOWANCES> 0 <INVENTORY> 360,600 <CURRENT-ASSETS> 0 <PP&E> 1,304,900 <DEPRECIATION> (491,700) <TOTAL-ASSETS> 1,738,500 <CURRENT-LIABILITIES> 0 <BONDS> 0 <PREFERRED-MANDATORY> 0 <PREFERRED> 0 <COMMON> 43,800 <OTHER-SE> 971,300 <TOTAL-LIABILITY-AND-EQUITY> 1,738,500 <SALES> 0 <TOTAL-REVENUES> 2,740,600 <CGS> 0 <TOTAL-COSTS> 2,278,200 <OTHER-EXPENSES> 0 <LOSS-PROVISION> 0 <INTEREST-EXPENSE> 20,400 <INCOME-PRETAX> 262,877 <INCOME-TAX> 97,400 <INCOME-CONTINUING> 165,500 <DISCONTINUED> 0 <EXTRAORDINARY> 0 <CHANGES> 0 <NET-INCOME> 165,500 <EPS-BASIC> 4.17 <EPS-DILUTED> 4.15