The following table sets forth the computation of our ratio of earnings to fixed charges for the periods indicated:

																	Three Months Ended March 31, 2009

		Fiscal Year Ended December 31,
		2004			2005			2006			2007			2008
		(dollars in thousands)
Interest expense, including amortization of debt issuance costs		$	45,355		$	39,547		$	37,492		$	60,526		$	162,396		$	36,251
Capitalized interest			6,935			730			1,686			13,717			17,822			3,051

Fixed charges			52,290			40,277			39,178			74,243			180,218			39,302
Income before taxes and extraordinary items			475,033			360,626			631,555			630,238			743,813			(147,494	)
Amortization of capitalized interest			3,729			4,073			4,814			5,069			4,670			921
Less capitalized interest			(6,935	)		(730	)		(1,686	)		(13,717	)		(17,822	)		(3,051	)

Adjusted earnings		$	524,117		$	404,246		$	673,861		$	695,833		$	910,879		$	(110,022	)
	Ratio		10.02	x		10.04	x		17.20	x		9.37	x		5.05	x		—

For purposes of calculating our ratio of earnings to fixed charges, earnings consist of earnings from continuing operations before income taxes and extraordinary items, adjusted for the portion of fixed charges deducted from the earnings, plus amortization of capitalized interest. Fixed charges consist of interest on all indebtedness, including capitalized interest, and amortization of debt issuances costs. For the three months ended March 31, 2009, earnings were inadequate to cover fixed charges by $149.3 million.