EXHIBIT 12.1

	YEAR ENDED DECEMBER 31,
(in thousands of U.S. dollars	2007		2006			2005		2004		2003
Fixed charges:
Interest expense	$	84,915	$	10,998	(1)	$	10,927	$	11,362	$	13,134
Portion of rent expense representative of interest		8967		2,900			2,900		2,600		2,467
Total fixed charges	$	93,882	$	13,898		$	13,827	$	13,962	$	15,601
Earnings:
Income from continuing operations before tax	$	88,860	$	83,538		$	146,225	$	156,805	$	162,833
Fixed charges per above		93,882		13,898			13,827		13,962		15,601
Total earnings	$	182,742	$	97,436		$	160,052	$	170,767	$	178,434
Ratio of earnings to fixed charges		1.95		7.01			11.58		12.23		11.44

(1) Excludes $13,751 of interest expense for premiums and losses on swap and swaption contracts. These contracts are unrelated to our indebtedness.