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<TABLE> <S> <C>
<PAGE>
<ARTICLE> 5
<MULTIPLIER> 1,000
<S> <C>
<PERIOD-TYPE> 6-MOS
<FISCAL-YEAR-END> DEC-31-2000
<PERIOD-START> JAN-01-2000
<PERIOD-END> JUN-30-2000
<CASH> 3,142
<SECURITIES> 0
<RECEIVABLES> 9,149
<ALLOWANCES> 612
<INVENTORY> 1,258
<CURRENT-ASSETS> 18,890
<PP&E> 45,119
<DEPRECIATION> 19,679
<TOTAL-ASSETS> 57,902
<CURRENT-LIABILITIES> 7,610
<BONDS> 0
0
0
<COMMON> 132
<OTHER-SE> 41,613
<TOTAL-LIABILITY-AND-EQUITY> 57,902
<SALES> 11,034
<TOTAL-REVENUES> 38,533
<CGS> 3,169
<TOTAL-COSTS> 20,868
<OTHER-EXPENSES> 14,437
<LOSS-PROVISION> 0
<INTEREST-EXPENSE> 178
<INCOME-PRETAX> 3,289
<INCOME-TAX> 1,348
<INCOME-CONTINUING> 1,941
<DISCONTINUED> 0
<EXTRAORDINARY> 0
<CHANGES> 0
<NET-INCOME> 1,941
<EPS-BASIC> $0.33
<EPS-DILUTED> $0.31
</TABLE>
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