Exhibit (12)

COMPUTATION OF RATIO OF EARNINGS TO FIXED CHARGES

(Dollar amounts in thousands)

		Years Ended December 31
		1996		1997		1998		1999		2000
Consolidated income before income taxes		$	172,092	$	194,792	$	198,217	$	215,497	$	160,156
Add:
	Interest and amortization of debt expense		1,654		15,655		15,224		24,445		97,461
	Interest portion of rental expense		2,414		3,693		4,849		5,449		10,608
	Income as adjusted	$	176,160	$	214,140	$	218,290	$	245,391	$	268,225
Fixed charges:
	Interest and amortization of debt expense	$	1,654	$	15,655	$	15,224	$	24,445	$	97,461
	Capitalized interest		4,315		1,628		1,694		1,491		1,022
	Interest portion of rental expense		2,414		3,693		4,849		5,449		10,608
	Total fixed charges	$	8,383	$	20,976	$	21,767	$	31,385	$	109,091
Ratio of earnings to fixed charges			21.0		10.2		10.0		7.8		2.5

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