Exhibit 12.1

Computation of Ratio of Earnings to Fixed Charges
(Dollars in Millions, Except Ratios)

	For the Year Ended December 31,
	2003		2004		2005		2006		2007		2008
Earnings:
Net earnings	$	439.2	$	568.7	$	356.3	$	338.4	$	300.8	$	240.2
Provision for income taxes		154.3		177.8		197.4		120.9		48.7		35.7
Amortization of capitalized interest		0.6		0.6		0.5		0.2		0.1		0.1
Fixed charges excluding interest capitalized		22.7		24.4		22.8		22.5		23.0		37.9
Total		616.8		771.5		577.0		482.0		372.6		313.9
Fixed Charges:
Interest expense (gross of interest income)		12.5		12.3		11.2		12.1		13.0		28.9
Amortization of deferred financing expense		0.8		1.1		0.4		0.3		0.3		0.7
Interest capitalized		0.4		—		1.4		1.8		0.2		1.4
Interest component of rental expense		9.4		11.0		11.2		10.1		9.7		8.3
Total		23.1		24.4		24.2		24.3		23.2		39.3
Ratio of Earnings to Fixed Charges		26.7		31.6		23.8		19.8		16.1		8.0