EXHIBIT 12.1

Ratios of Earnings to Fixed Charges

We present below our ratios of earnings to fixed charges. Earnings available to cover fixed charges consist of income before income taxes, equity share in income of unconsolidated affiliates and extraordinary gain plus fixed charges. Fixed charges consist of interest expense and the portion of rental expense we believe to be a reasonable approximation of the interest factor. No shares of our preferred stock were outstanding during the years ended December 31, 2011, 2010, 2009, 2008, and 2007, and we did not pay preferred stock dividends during these periods. Consequently, the ratios of earnings to fixed charges and preferred dividends are the same as the ratios of earnings to fixed charges for the same periods listed above.

	Year Ended December 31,
	2011		2010		2009			2008			2007
Earnings:
Consolidated net income	$	5,262	$	40,284	$	49,841		$	24,256		$	7,725
add:
Extraordinary gain/Cumulative effect of a change in accounting principle		—		—		—			(243	)		—
Income tax expense		7,058		19,556		34,023			20,161			9,159
Equity share in income of unconsolidated subsidiary		—		—		(852	)		(454	)		(416	)
Dividends from unconsolidated subsidiary		—		—		—			228			—
Fixed charges		3,815		3,576		4,540			2,778			2,655
Total Earnings	$	16,135	$	63,416	$	87,552		$	46,726		$	19,123
Fixed Charges:
Interest expense	$	1,047	$	903	$	2,329		$	1,359		$	1,434
Interest component of rental expense		2,768		2,673		2,211			1,419			1,221
Total Fixed Charges	$	3,815	$	3,576	$	4,540		$	2,778		$	2,655
Ratio of Total Earnings to Total Fixed Charges		4.2		17.7		19.3			16.8			7.2