Exhibit 12

COMPUTATION OF RATIO OF EARNINGS TO FIXED CHARGES
(In Thousands, Except Ratios)
	Twelve months		Twelve months		Twelve months		Six months		Six months
	Ended		Ended		Ended		Ended		Ended
	June 30,		December 31,		December 31,		June 30,		June 30,
	2008		2007		2006		2008		2007
Earnings: (1)
Net income (2)	$	114,407	$	106,506	$	91,377	$	66,783	$	58,882
Income taxes		73,060		66,741		47,691		41,075		34,756
Equity in (income) losses of equity investees, net of distributions		-		-		-		-		-
Fixed Charges (See below) (3)		82,868		81,145		78,345		40,092		38,369
Less:  Preferred stock dividend		-		-		-		-		-
Total adjusted earnings	$	270,335	$	254,392	$	217,413	$	147,950	$	132,007
Fixed charges: (3)
Total interest expense	$	82,504	$	80,576	$	77,538	$	39,935	$	38,007
Interest component of rents		364		569		807		157		362
Preferred stock dividend		-		-		-		-		-
Total fixed charges	$	82,868	$	81,145	$	78,345	$	40,092	$	38,369
Ratio of earnings to fixed charges		3.3		3.1		2.8		3.7		3.4

1.    For the purposes of computing these ratios, earnings consist of pretax net income before income (losses) from equity investees, fixed charges, and less preferred stock dividends of a

       consolidated subsidiary.

2.    Net income, as defined, is before preferred stock dividend requirement of subsidiary and cumulative effect of change in accounting principle.

3.    Fixed charges consist of total interest, amortization of debt discount, premium and expense, the estimated portion of interest implicit in rentals, and preferred stock dividends of a

       consolidated subsidiary.