<ARTICLE> 5 <RESTATED> <MULTIPLIER> 1,000 <PERIOD-TYPE> YEAR <FISCAL-YEAR-END> DEC-31-1996 <PERIOD-START> JAN-01-1996 <PERIOD-END> DEC-31-1996 <CASH> 5,116 <SECURITIES> 121,545 <RECEIVABLES> 46,027 <ALLOWANCES> 1,418 <INVENTORY> 13,199 <CURRENT-ASSETS> 76,166 <PP&E> 225,908 <DEPRECIATION> 91,487 <TOTAL-ASSETS> 394,149 <CURRENT-LIABILITIES> 33,895 <BONDS> 65,713 <PREFERRED-MANDATORY> 0 <PREFERRED> 0 <COMMON> 10,663 <OTHER-SE> 221,466 <TOTAL-LIABILITY-AND-EQUITY> 394,149 <SALES> 261,220 <TOTAL-REVENUES> 265,220 <CGS> 170,016 <TOTAL-COSTS> 170,016 <OTHER-EXPENSES> 48,550 <LOSS-PROVISION> 1,522 <INTEREST-EXPENSE> 5,671 <INCOME-PRETAX> 39,461 <INCOME-TAX> 13,375 <INCOME-CONTINUING> 26,086 <DISCONTINUED> 0 <EXTRAORDINARY> 0 <CHANGES> 0 <NET-INCOME> 26,086 <EPS-PRIMARY> 3.06<F1> <EPS-DILUTED> 3.05<F1> <FN> <F1>Per share amounts are restated to reflect 2-for-1 stock split effective March 6, 1998 and adoption of FAS128 effective fourth quarter 1997. </FN>