Exhibit 12.1

Calculation of Ratio of Earnings to Combined Fixed Charges and Preferred Dividends

(dollars in millions)

	Year ended December 31,
	2010		2009		2008		2007		2006
Pre-tax income from continuing operations before adjustment for noncontrolling interests/minority interests in consolidated subsidiaries or income or loss from equity investees plus fixed charges*	$	259.0	$	292.5	$	323.7	$	291.8	$	324.0
Fixed charges:
Interest expensed and capitalized		186.1		132.9		142.8		158.5		163.1
Appropriate portion of rentals		5.4		6.4		6.9		7.0		7.6
Total fixed charges		191.5		139.3		149.7		165.5		170.7
Pre-tax income required to pay preferred dividends		24.7		17.9		17.9		18.5		18.6
Total combined fixed charges and preferred dividends	$	216.2	$	157.2	$	167.6	$	184.0	$	189.3
Ratio of earnings to fixed charges		1.4		2.1		2.2		1.8		1.9
Ratio of earnings to combined fixed charges and preferred dividends		1.2		1.9		1.9		1.6		1.7

* Earnings used in computing the ratio of earnings to combined fixed charges and preferred dividends consists of income from continuing operations before income taxes, adjustment for noncontrolling interests/minority interests, income/loss from equity method investees, and fixed charges except for capitalized interest.