EXHIBIT 12.1

						Ratio of Earnings to Fixed Charges
	Three Months Ended March 31,					Year Ended December 31,
(Dollars in Thousands)	2008			2007		2007		2006			2005		2004			2003
Earnings:
Pre-tax income (loss)	$	(2,433,480	)	$	26,363	$	75,892	$	(322,229	)	$	110,709	$	116,218		$	(85,971	)
Deduct: income from partnerships		—			—		—		—			—		(12,777	)		(17,347	)
Add: cash received from partnerships		—			—		—		—			—		13,267			23,026
Add: fixed charges		227,017			244,761		992,457		863,843			312,438		191,945			186,777
Earnings available for fixed charges	$	(2,206,463	)	$	271,124	$	1,068,349	$	541,614		$	423,147	$	308,653		$	106,485
Fixed charges:
Interest expense	$	224,813		$	242,778	$	983,660	$	855,394		$	309,144	$	188,048		$	183,387
Interest component of rent expense		2,204			1,983		8,797		8,449			3,294		3,897			3,390
Total fixed charges		227,017			224,761	$	992,457	$	863,843		$	312,438	$	191,945		$	186,777
Ratio of earnings to fixed charges (1)		(2	)		1.1		1.1		(2	)		1.4		1.6			(2	)

(1) The ratio of earnings to fixed charges has been computed by dividing earnings by fixed charges. For purposes of computing he ratio:

• earnings consist of (a) income from continuing operations before income from equity investments in partnerships and income taxes, (b) fixed charges and (c) cash distributions from partnership investments; and

• fixed charges consists of (a) interest on debt, (b) amortization of debt issuance costs and (c) one-third of operating rental expense, which management believes is representative of the interest component of rent expense.

(2) Due to our losses in the three months ended March 31, 2008 and the years ended December 31, 2006 and 2003, the ratio was less than 1:1 for these periods. We would have had to generate additional earnings of $2,433,480, $322,229 and $80,292 to achieve a ratio of earnings to fixed charges of 1:1 for the three months ended March 31, 2008 and the years ended December 31, 2006 and 2003, respectively.