<TABLE> <S> <C>
<PAGE>
<ARTICLE> 5
<LEGEND>
THIS SCHEDULE CONTAINS SUMMARY FINANCIAL INFORMATION EXTRACTED FROM THE
CONSOLIDATED BALANCE SHEET AND CONSOLIDATED STATEMENTS OF EARNINGS 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> 6-MOS
<FISCAL-YEAR-END> DEC-31-2000
<PERIOD-START> JAN-01-2000
<PERIOD-END> JUN-30-2000
<CASH> 78,780
<SECURITIES> 160,860
<RECEIVABLES> 81,572
<ALLOWANCES> 12,778
<INVENTORY> 0
<CURRENT-ASSETS> 349,420
<PP&E> 65,769
<DEPRECIATION> 40,046
<TOTAL-ASSETS> 472,957
<CURRENT-LIABILITIES> 143,220
<BONDS> 0
0
0
<COMMON> 4
<OTHER-SE> 326,916
<TOTAL-LIABILITY-AND-EQUITY> 472,957
<SALES> 0
<TOTAL-REVENUES> 174,970
<CGS> 2,603
<TOTAL-COSTS> 13,268
<OTHER-EXPENSES> 108,758
<LOSS-PROVISION> 0
<INTEREST-EXPENSE> 0
<INCOME-PRETAX> 63,951
<INCOME-TAX> 24,335
<INCOME-CONTINUING> 39,616
<DISCONTINUED> 0
<EXTRAORDINARY> 0
<CHANGES> 0
<NET-INCOME> 39,616
<EPS-BASIC> 1.03
<EPS-DILUTED> 1.00
</TABLE>