<ARTICLE> 5
<LEGEND>
THIS SCHEDULE CONTAINS SUMMARY FINANCIAL INFORMATION EXTRACTED FROM THE
CONSOLIDATED BALANCE SHEET, CONSOLIDATED STATEMENT OF INCOME AND CONSOLIDATED
STATEMENT OF CASH FLOWS INCLUDED IN THE COMPANY'S FORM 10-Q FOR THE PERIOD ENDED
SEPTEMBER 30, 2000, AND IS QUALIFIED IN ITS ENTIRETY BY REFERENCE TO SUCH
FINANCIAL STATEMENTS.

<MULTIPLIER> 1,000

                             
<PERIOD-TYPE>                   9-MOS
<FISCAL-YEAR-END>                          DEC-31-2000
<PERIOD-START>                             JAN-01-2000
<PERIOD-END>                               SEP-30-2000
<CASH>                                          45,625
<SECURITIES>                                    18,009
<RECEIVABLES>                                   30,066
<ALLOWANCES>                                     1,610
<INVENTORY>                                     21,262
<CURRENT-ASSETS>                               127,135
<PP&E>                                         149,129
<DEPRECIATION>                                  33,220
<TOTAL-ASSETS>                                 257,215
<CURRENT-LIABILITIES>                           36,024
<BONDS>                                              0
<PREFERRED-MANDATORY>                                0
<PREFERRED>                                          0
<COMMON>                                            23
<OTHER-SE>                                     214,935
<TOTAL-LIABILITY-AND-EQUITY>                   257,215
<SALES>                                        134,186
<TOTAL-REVENUES>                               134,186
<CGS>                                           54,949
<TOTAL-COSTS>                                   54,949
<OTHER-EXPENSES>                                     0
<LOSS-PROVISION>                                   793
<INTEREST-EXPENSE>                                 453
<INCOME-PRETAX>                                 47,209
<INCOME-TAX>                                    15,109
<INCOME-CONTINUING>                             32,100
<DISCONTINUED>                                       0
<EXTRAORDINARY>                                      0
<CHANGES>                                            0
<NET-INCOME>                                    32,100
<EPS-BASIC>                                     1.39
<EPS-DILUTED>                                     1.37