Exhibit 12.1

Computation of Ratio of Earnings to Fixed Charges

	Year Ended December 31,
	2010		2009			2008		2007			2006
Earnings:
Net income (loss)		153,902		(3,595	)		84,883		257,832			176,401
Taxes		49,038		5,677			28,743		87,595			63,825
Equity in losses (earnings) from real estate ventures		11,379		58,867			5,462		(12,216	)		(9,221	)
Operating distributions from real estate ventures		188		157			1,064		11,560			17,501
Fixed charges		78,549		88,598			68,908		47,103			40,104
Total Earnings		293,056		149,704			189,060		391,874			288,610
Fixed Charges:
Interest expense		41,723		52,005			31,933		17,783			16,374
Applicable portion of rent expense (1)		36,826		36,593			36,975		29,320			23,730
Total Fixed Charges		78,549		88,598			68,908		47,103			40,104
Ratio of Earnings to Fixed Charges		3.73		1.69			2.74		8.32			7.20

1. Represents one-third of rent expense, which we believe approximates the portion of rent expense that relates to interest.