<ARTICLE> 5 <LEGEND> THIS SCHEDULE CONTAINS SUMMARY FINANCIAL INFORMATION EXTRACTED FROM (A) THE CONSOLIDATED BALANCE SHEET AT JUNE 30, 1996 AND THE CONSOLIDATED STATEMENT OF INCOME FOR THE YEAR ENDED JUNE 30, 1996 AND IS QUALIFIED IN ITS ENTIRETY BY REFERENCE TO SUCH (B) FINANCIAL STATEMENTS. </LEGEND> <PERIOD-TYPE> YEAR <FISCAL-YEAR-END> JUN-30-1996 <PERIOD-START> JUL-01-1995 <PERIOD-END> JUN-30-1996 <CASH> 1721939 <SECURITIES> 30280869 <RECEIVABLES> 5322625 <ALLOWANCES> 149180 <INVENTORY> 531637 <CURRENT-ASSETS> 12932037 <PP&E> 31904180 <DEPRECIATION> 20867899 <TOTAL-ASSETS> 55534495 <CURRENT-LIABILITIES> 4646457 <BONDS> 0 <PREFERRED-MANDATORY> 0 <PREFERRED> 0 <COMMON> 3921287 <OTHER-SE> 44216751 <TOTAL-LIABILITY-AND-EQUITY> 55534495 <SALES> 25755479 <TOTAL-REVENUES> 30223457 <CGS> 14854410 <TOTAL-COSTS> 24703105 <OTHER-EXPENSES> 0 <LOSS-PROVISION> 0 <INTEREST-EXPENSE> 0 <INCOME-PRETAX> 6332548 <INCOME-TAX> 2360000 <INCOME-CONTINUING> 3972548 <DISCONTINUED> 0 <EXTRAORDINARY> 0 <CHANGES> 0 <NET-INCOME> 3972548 <EPS-PRIMARY> 3.23 <EPS-DILUTED> 3.23