<TABLE> <S> <C>
<PAGE>
<ARTICLE> 5
<S> <C>
<PERIOD-TYPE> YEAR
<FISCAL-YEAR-END> JUL-31-2000
<PERIOD-START> AUG-01-1999
<PERIOD-END> JUL-31-2000
<CASH> 162,879,042
<SECURITIES> 362,437,101
<RECEIVABLES> 187,705,911
<ALLOWANCES> 26,711,000
<INVENTORY> 13,120,993
<CURRENT-ASSETS> 641,892,972
<PP&E> 299,852,692
<DEPRECIATION> 74,214,413
<TOTAL-ASSETS> 1,219,055,357
<CURRENT-LIABILITIES> 292,463,380
<BONDS> 0
0
0
<COMMON> 259,593
<OTHER-SE> 467,928,308
<TOTAL-LIABILITY-AND-EQUITY> 1,219,005,357
<SALES> 1,093,911,855
<TOTAL-REVENUES> 1,093,911,855
<CGS> 918,256,364
<TOTAL-COSTS> 1,290,295,637
<OTHER-EXPENSES> 0
<LOSS-PROVISION> 20,227,000
<INTEREST-EXPENSE> 8,259,515
<INCOME-PRETAX> 447,358,812
<INCOME-TAX> 216,508,717
<INCOME-CONTINUING> 233,825,881
<DISCONTINUED> 0
<EXTRAORDINARY> (2,975,845)
<CHANGES> 0
<NET-INCOME> 230,850,036
<EPS-BASIC> 6.60
<EPS-DILUTED> 6.14
</TABLE>