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<TABLE> <S> <C>
<ARTICLE> 5
<MULTIPLIER> 1,000
<S> <C>
<PERIOD-TYPE> 9-MOS
<FISCAL-YEAR-END> DEC-31-2000
<PERIOD-END> SEP-30-2000
<CASH> 61,660
<SECURITIES> 138,191
<RECEIVABLES> 56,297
<ALLOWANCES> 2,186
<INVENTORY> 4,896
<CURRENT-ASSETS> 268,628
<PP&E> 224,854
<DEPRECIATION> 113,447
<TOTAL-ASSETS> 1,269,547
<CURRENT-LIABILITIES> 49,419
<BONDS> 0
0
0
<COMMON> 227
<OTHER-SE> 850,072
<TOTAL-LIABILITY-AND-EQUITY> 1,269,547
<SALES> 333,779
<TOTAL-REVENUES> 333,779
<CGS> 120,888
<TOTAL-COSTS> 120,888
<OTHER-EXPENSES> 23,534
<LOSS-PROVISION> 0
<INTEREST-EXPENSE> 9,963
<INCOME-PRETAX> 45,228
<INCOME-TAX> 18,998
<INCOME-CONTINUING> 25,872
<DISCONTINUED> 0
<EXTRAORDINARY> 0
<CHANGES> 0
<NET-INCOME> 25,872
<EPS-BASIC> 1.18
<EPS-DILUTED> 1.18
</TABLE>
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