Quarterly Results

12 Months Ended

Dec. 31, 2012

22. Quarterly Results

The following table sets forth selected unaudited quarterly data for the periods shown (U.S. dollars in millions, except per share amounts):

	2011								2012
	1^st Quarter		2^nd Quarter		3^rd Quarter		4^th Quarter		1^st Quarter		2^nd Quarter		3^rd Quarter		4^th Quarter

Revenue	$	395.8	$	424.4	$	428.4	$	495.3	$	462.0	$	593.2	$	526.2	$	588.3
Gross profit		295.2		353.3		357.8		415.1		386.2		497.7		439.4		493.2
Operating income		24.9		66.0		67.2		75.6		71.6		97.9		82.4		88.9
Net income		15.3		41.7		46.8		49.5		47.8		60.4		54.2		59.2
Net income per share:
Basic		0.25		0.67		0.75		0.80		0.77		0.98		0.90		1.01
Diluted		0.24		0.65		0.72		0.76		0.74		0.94		0.87		0.97

- Definition

The entire disclosure for the quarterly financial data in the annual financial statements. The disclosure may include a tabular presentation of financial information for each fiscal quarter for the current and previous year, including revenues, gross profit, income or loss before extraordinary items and earnings per share data. It also includes an indication if the information in the note is unaudited, comments on the aggregate effect of year-end adjustments, and an explanation of matters or transactions that affect comparability or are pertinent to an understanding of the information furnished.

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