<TABLE> <S> <C>
<ARTICLE> 5
<LEGEND>
THIS SCHEDULE CONTAINS SUMMARY FINANCIAL INFORMATION EXTRACTED FROM THE
REGISTRANT'S QUARTERLY REPORT ON FORM 10-Q FOR THE NINE-MONTH PERIOD
ENDED JUNE 30, 2000 AND IS QUALIFIED IN ITS ENTIRETY BY REFERENCE TO
SUCH FINANCIAL STATEMENTS.
</LEGEND>
<S> <C>
<PERIOD-TYPE> 9-MOS
<FISCAL-YEAR-END> SEP-30-2000
<PERIOD-END> JUN-30-2000
<CASH> $ 26,751,718
<SECURITIES> 1,284,052
<RECEIVABLES> 46,307,823
<ALLOWANCES> 0
<INVENTORY> 16,808,860
<CURRENT-ASSETS> 93,949,164
<PP&E> 93,558,490
<DEPRECIATION> 44,771,991
<TOTAL-ASSETS> 219,968,458
<CURRENT-LIABILITIES> 49,689,529
<BONDS> 0
0
0
<COMMON> 18,166,996
<OTHER-SE> 104,920,112
<TOTAL-LIABILITY-AND-EQUITY> 219,968,458
<SALES> 197,391,066
<TOTAL-REVENUES> 197,391,066
<CGS> 107,627,802
<TOTAL-COSTS> 107,627,802
<OTHER-EXPENSES> 0
<LOSS-PROVISION> 0
<INTEREST-EXPENSE> 1,189,305
<INCOME-PRETAX> 34,411,934
<INCOME-TAX> 13,488,774
<INCOME-CONTINUING> 20,923,160
<DISCONTINUED> 0
<EXTRAORDINARY> 0
<CHANGES> 0
<NET-INCOME> 20,923,160
<EPS-BASIC> 1.35
<EPS-DILUTED> 1.32
</TABLE>