Exhibit 12

Computation of Ratio of Earnings to Fixed Charges and
Ratio of Earnings to Combined Fixed Charges and Preferred Stock Dividends

			Six Months Ended June 30,		Year Ended December 31,
			2003		2002		2001			2000		1999			1998
			(dollars in thousands, except ratios)
Income (loss) before income taxes and cumulative effect of change in accounting principle, but after minority interest			$	244,759	$	259,184		($148,207	)	$	38,689		($79,814	)	$	64,225
Add:
	Portion of rents representative of the interest factor			2,931		5,862		6,007			5,527		5,370			4,698
	Interest expense			25,368		45,475		45,719			47,596		50,801			48,819
Income as adjusted			$	273,058	$	310,521		($96,481	)	$	91,812		($23,643	)	$	117,742
Fixed charges:
	Interest expense		$	25,368	$	45,475	$	45,719		$	47,596	$	50,801		$	48,819
	Preferred dividends			0		0		0			0		497			8,268
	Portion of rents representative of the interest factor			2,931		5,862		6,007			5,527		5,370			4,698
		Total	$	28,299	$	51,337	$	51,726		$	53,123	$	56,668		$	61,785
Ratio of Earnings to Fixed Charges				9.6		6.0		N/A			1.7		N/A			2.2
Ratio of Earnings to Combined Fixed Charges and Preferred Stock Dividends				9.6		6.0		N/A			1.7		N/A			1.9