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

  

<ARTICLE> 5
<RESTATED>
[LEGEND]
THIS SCHEDULE HAS BEEN RESTATED TO REFLECT THE COMPANY'S ADOPTION OF 
STATEMENT OF FINANCIAL ACCOUNTING STANDARDS NO. 128, "EARNINGS PER SHARE" 
(FAS 128) AND CONTAINS SUMMARY FINANCIAL INFORMATION EXTRACTED FROM THE
CONDENSED CONSOLIDATED FINANCIAL STATEMENTS INCLUDED IN THE COMPANY'S FORM
10-Q FOR THE PERIOD ENDED MARCH 31, 1996, AND THE QUARTERLY FINANCIAL DATA 
FROM THE COMPANY'S FORM 10-K FOR THE YEAR ENDED DECEMBER 31, 1997, AND ARE
QUALIFIED IN THEIR ENTIRETY BY REFERENCE TO SUCH FINANCIAL STATEMENTS AND THE
NOTES THERETO.
[/LEGEND]
       
                             
<PERIOD-TYPE>                   3-MOS
<FISCAL-YEAR-END>                          DEC-31-1996
<PERIOD-END>                               MAR-31-1996
<CASH>                                         138,880
<SECURITIES>                                 1,008,933
<RECEIVABLES>                                  174,865<F1>
<ALLOWANCES>                                         0<F1>
<INVENTORY>                                     88,853
<CURRENT-ASSETS>                             1,064,397
<PP&E>                                         796,015
<DEPRECIATION>                                 281,554
<TOTAL-ASSETS>                               2,065,668
<CURRENT-LIABILITIES>                          224,377
<BONDS>                                        150,000
<PREFERRED-MANDATORY>                                0
<PREFERRED>                                          0
<COMMON>                                         2,403
<OTHER-SE>                                   1,662,909
<TOTAL-LIABILITY-AND-EQUITY>                 2,065,668
<SALES>                                        152,337
<TOTAL-REVENUES>                               242,884
<CGS>                                           25,879
<TOTAL-COSTS>                                   25,879
<OTHER-EXPENSES>                               115,633
<LOSS-PROVISION>                                     0<F1>
<INTEREST-EXPENSE>                               1,559
<INCOME-PRETAX>                                 47,771
<INCOME-TAX>                                     9,554
<INCOME-CONTINUING>                             38,217
<DISCONTINUED>                                       0
<EXTRAORDINARY>                                      0
<CHANGES>                                            0
<NET-INCOME>                                    38,217
<EPS-PRIMARY>                                     0.32<F2><F3>
<EPS-DILUTED>                                     0.31<F3>
<FN>
<F1>ACCOUNTS RECEIVABLE ARE PRESENTED NET OF ALLOWANCE FOR DOUBTFUL ACCOUNTS IN
THE CONDENSED CONSOLIDATED BALANCE SHEET.  THE PROVISION FOR LOSSES ON DOUBTFUL
ACCOUNTS IS NOT REPORTED AS A SEPARATE LINE IN THE CONDENSED CONSOLIDATED
STATEMENT OF INCOME OR STATEMENT OF CASH FLOWS. 
<F2>REPRESENTS BASIC EARNINGS PER SHARE.
<F3>RESTATED TO REFLECT THE COMPANY'S ADOPTION OF FAS 128.
</FN>