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Exhibit 99.1

SCHEDULE II — VALUATION AND QUALIFYING ACCOUNTS
(All dollar amounts expressed in thousands of U.S. dollars)

Column A	Column B		Column C				Column D						Column E
			Additions				Deductions
	Balance at beginning of period		Charged to costs and expenses(1)		Charged to product sales(2)		Write-offs of accounts receivable			Sales discounts and allowances			Balance at end of period
Allowance for doubtful accounts, deducted from accounts receivable
Year ended December 31, 2005	$	4,716	$	427	$	6,844	$	(421	)	$	(7,266	)	$	4,300
Year ended December 31, 2004		3,954		2,365		5,797		(378	)		(7,022	)		4,716
Year ended December 31, 2003		3,440		—		8,551		(49	)		(7,988	)		3,954

1.

Amounts represent the reserve for potential credit losses.

2.

Amounts represent the reserve for sales discounts and allowances.

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SCHEDULE II — VALUATION AND QUALIFYING ACCOUNTS (All dollar amounts expressed in thousands of U.S. dollars)