WARNING: THE EDGAR SYSTEM ENCOUNTERED ERROR(S) WHILE PROCESSING THIS SCHEDULE.

<TABLE> <S> <C>

                                                                      EXHIBIT 27

<ARTICLE>                     5
<LEGEND>
     
THIS SCHEDULE CONTAINS SUMMARY FINANCIAL INFORMATION EXTRACTED FROM THE
FINANCIAL STATEMENTS APPEARING IN EXHIBIT 13 TO THIS FORM 10-K AND IS QUALIFIED
IN ITS ENTIRETY BY REFERENCE TO SUCH FINANCIAL STATEMENTS.

</LEGEND>
                        
<MULTIPLIER>                        1,000
       
<S>                             <C>             <C>               <C> 
<PERIOD-TYPE>                   12-MOS          12-MOS            12-MOS    
<FISCAL-YEAR-END>               DEC-31-1998     DEC-31-1997       DEC-31-1996 
<PERIOD-START>                  JAN-01-1998     JAN-01-1997       JAN-01-1996 
<PERIOD-END>                    DEC-31-1998     DEC-31-1997       DEC-31-1996
<CASH>                             66,400          64,876            72,009  
<SECURITIES>                       54,022          59,248            42,404  
<RECEIVABLES>                     411,363         331,359           296,688 
<ALLOWANCES>                       38,988          32,221            26,287   
<INVENTORY>                        49,770          48,157            43,529  
<CURRENT-ASSETS>                  670,202         594,084           499,334   
<PP&E>                            441,209         362,653           320,713 
<DEPRECIATION>                    229,049         204,383           174,313 
<TOTAL-ASSETS>                  2,914,851       2,475,224         1,846,841
<CURRENT-LIABILITIES>             753,697         558,177           425,552 
<BONDS>                         1,076,167       1,247,845           482,315 
<PREFERRED-MANDATORY>                   0               0                 0 
<PREFERRED>                             0               0                 0 
<COMMON>                            2,980           2,799                 0  
<OTHER-SE>                        953,506         521,639           796,767  
<TOTAL-LIABILITY-AND-EQUITY>    2,914,851       2,475,224         1,846,841  
<SALES>                                 0               0                 0 
<TOTAL-REVENUES>                4,724,119       3,961,502         3,458,328 
<CGS>                                   0               0                 0  
<TOTAL-COSTS>                   3,679,612       3,058,160         2,681,008 
<OTHER-EXPENSES>                  648,085         559,409           482,102  
<LOSS-PROVISION>                        0               0                 0  
<INTEREST-EXPENSE>                 92,945          76,447            38,298
<INCOME-PRETAX>                   318,778         274,279           252,397
<INCOME-TAX>                      128,786         110,809           101,968  
<INCOME-CONTINUING>               189,992         163,470           150,429 
<DISCONTINUED>                          0               0                 0    
<EXTRAORDINARY>                         0               0                 0 
<CHANGES>                               0               0                 0  
<NET-INCOME>                      188,992         163,470           150,429  
<EPS-PRIMARY>                        0.66            0.57              0.47
<EPS-DILUTED>                        0.64            0.55              0.46  
        


</TABLE>