<TABLE> <S> <C>
<PAGE>
<ARTICLE> 5
<LEGEND>
THIS SCHEDULE CONTAINS SUMMARY FINANCIAL INFORMATION EXTRACTED FROM THE
CONSOLIDATED BALANCE SHEETS AND CONSOLIDATED STATEMENTS OF INCOME FILED AS
PART OF THIS FORM 10-Q AND IS QUALIFIED IN ITS ENTIRETY BY REFERENCE TO SUCH
FINANCIAL STATEMENTS.
</LEGEND>
<MULTIPLIER> 1,000
<S> <C>
<PERIOD-TYPE> 9-MOS
<FISCAL-YEAR-END> DEC-31-2000
<PERIOD-START> JAN-01-2000
<PERIOD-END> SEP-30-2000
<CASH> 114,512
<SECURITIES> 173,422
<RECEIVABLES> 90,144
<ALLOWANCES> 14,180
<INVENTORY> 0
<CURRENT-ASSETS> 399,368
<PP&E> 67,756
<DEPRECIATION> 42,533
<TOTAL-ASSETS> 525,728
<CURRENT-LIABILITIES> 142,369
<BONDS> 0
0
0
<COMMON> 4
<OTHER-SE> 380,364
<TOTAL-LIABILITY-AND-EQUITY> 525,728
<SALES> 0
<TOTAL-REVENUES> 265,478
<CGS> 19,379
<TOTAL-COSTS> 19,379
<OTHER-EXPENSES> 166,652
<LOSS-PROVISION> 0
<INTEREST-EXPENSE> 0
<INCOME-PRETAX> 96,189
<INCOME-TAX> 36,424
<INCOME-CONTINUING> 59,765
<DISCONTINUED> 0
<EXTRAORDINARY> 0
<CHANGES> 0
<NET-INCOME> 59,765
<EPS-BASIC> 1.54
<EPS-DILUTED> 1.49
</TABLE>