EXHIBIT 12.1

Statement of Computation of Ratio of Earnings to Fixed Charges

	For the year ended December 31
	2005		2004			2003			2002			2001
Earnings:
Income (loss) before income taxes, minority interest, and cumulative effect of accounting change	$	75,238	$	(16,139	)	$	(1,496	)	$	11,268		$	(4,639	)
Add (less): Equity earnings (loss)		1,560		267			(789	)		(2,403	)		(3,131	)
Add: Dividends		—		—			150			2,828			1,054
Sub-total:		76,798		(15,872	)		(2,135	)		11,693			(6,716	)
Add: Total fixed charges (per below)		46,214		31,638			17,945			11,255			12,581
Less: Interest capitalized		1,301		436			152			212			336
Total earnings (loss) before income taxes, minority interest, and cumulative effect of accounting change	$	121,711	$	15,330		$	15,658		$	22,736		$	5,529
Fixed Charges:
Interest expense, including interest capitalized	$	43,187	$	29,226		$	15,958		$	9,939		$	11,374
Portion of rental expense representative of the interest factor		3,027		2,412			1,987			1,316			1,207
Total fixed charges	$	46,214	$	31,638		$	17,945		$	11,255		$	12,581
Ratio of Earnings to Fixed Charges		2.6		(a	)		(a	)		2.0			(a	)

(a) For fiscal years 2004, 2003 and 2001 earnings were insufficient to cover fixed charges by $16,308, $2,287 and $7,052, respectively.