Accumulated
			Additional								Other
	Common		Paid-in		Treasury		Unearned		Retained		Comprehensive
	Stock (1)		Capital		Stock		Compensation		Earnings		Income (Loss)		Total
	-----------------		-----------------		-----------------		-----------------		-----------------		-----------------		-----------------
Balance, December 31, 2002	$278,116		$333,543,471		$(8,749,922)		$---		$40,179,572		$(178,053)		$365,073,184
Stock issued for benefit plans (83,201 shares)	1		(408,178)		1,191,829		----		---		----		783,652
Stock options exercised (142,807 shares)	1,428		1,158,984		----		----		----		----		1,160,412
Tax benefits from exercise of stock options	----		156,980		----		----		----		----		156,980
Employee stock purchase plan (56,574 shares)	566		413,947		----		----		----		----		414,513
Comprehensive income:
Net income	----		----		----		----		29,893,812		----		29,893,812
Change in fair value of cash flow hedges, net of income tax	----		----		----		----		----		(91,289)		(91,289)
													----------------------
Total comprehensive income	----		----		----		----		----		----		29,802,523
	-----------------		-----------------		-----------------		-----------------		-----------------		-----------------		-----------------
Balance, December 31, 2003	$280,111		$334,865,204		$(7,558,093)		$--		$70,073,384		$(269,342)		$397,391,264
	===========		===========		===========		===========		===========		===========		===========
Stock issued for benefit plans (46,150 shares)	----		166,298		661,848		----		----		----		828,146
Stock options exercised (509,105 shares)	5,091		4,260,882		----		----		----		----		4,265,973
Tax benefits from exercise of stock options	----		1,956,555		----		----		----		----		1,956,555
Employee stock purchase plan (50,418 shares)	504		502,097		----		----		----		----		502,601
Grants of restricted stock (100,900 shares)	----		1,785,262		----		(1,785,262)		----		----		-
Amortization of restricted stock compensation	----		----		----		56,677		----		----		56,677
Comprehensive income:
Net income	----		----		----		----		68,450,917		----		68,450,917
Change in fair value of cash flow hedges, net of income tax	----		---		----		----		----		720,007		720,007
													----------------------
Total comprehensive income	----		----		----		----		----		----		69,170,924
	-----------------		-----------------		-----------------		-----------------		-----------------		-----------------		-----------------
Balance, December 31, 2004	$285,706		$343,536,298		$(6,896,245)		$(1,728,585)		$138,524,301		$450,665		$474,172,140
	===========		===========		===========		===========		===========		===========		===========
Stock issued for benefit plans (31,424 shares)	----		435,134		450,659		----		----		----		885,793
Stock options exercised (840,847 shares)	8,409		9,804,555		----		----		----		----		9,812,964
Tax benefits from exercise of stock options	----		4,366,236		----		----		----		----		4,366,236
Employee stock purchase plan (32,495 shares)	325		642,354		----		----		----		----		642,679
Issuance of restricted stock (15,000 shares)	150		----		----		----		----		----		150
Grants of restricted stock (158,500 shares)	----		6,668,608		----		(6,072,008)		----		----		596,600
Forfeitures of restricted stock	----		(367,490)		----		367,490		----		----		-
Amortization of restricted stock compensation	----		----		----		1,583,283		----		----		1,583,283
Comprehensive income:
Net income	----		----		----		----		115,778,456		----		115,778,456
Change in fair value of cash flow hedges, net of income tax	----		----		----		----		----		(520,134)		(520,134)
													-----------------
Total comprehensive income	----		----		----		----		----		----		115,258,322
	-----------------		-----------------		-----------------		-----------------		-----------------		-----------------		-----------------
Balance, December 31, 2005	$294,590		$365,085,695		$(6,445,586)		$(5,849,820)		$254,302,757		$(69,469)		$607,318,167
	===========		===========		===========		===========		===========		===========		===========
(1)$.01 par value.