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Exhibit 12

Ratio of Earnings to Fixed Charges
(in thousands, except ratios)

		December 31,
		2003		2004	2005	2006		2007
Income before income tax expense		$	79,772	99.671	106,024	85,405		50,923
Equity in losses of equity-method investees			618	615	42	(1,721	)	(1,042	)
Net income before equity in losses of equity- method investees			80,390	300,376	106,066	83,684		49,881
Add fixed charges:
	Interest expense including amortization of debt issuance costs		26,397	30,952	26,548	43,393		58,550
	Estimate of interest within rental expense		4,071	5,116	4,208	4,755		4,699
			30,468	36,068	30,756	48,148		63,249
	Adjusted earnings		110,858	136,444	136,822	131,832		113,130
Ratio of earnings to fixed charges (1)			3.6	3.8	4.4	2.7		1.8

(1)

The ratio of earnings to fixed charges is computed by dividing adjusted earnings by fixed charges.

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Exhibit 12

Ratio of Earnings to Fixed Charges (in thousands, except ratios)