Quarterly Financial Data (Unaudited) (Tables)

12 Months Ended

Dec. 31, 2012

The following table sets forth unaudited quarterly financial data for 2012 and 2011:

Quarterly Financial Data (Unaudited)

	First		Second		Third		Fourth
(Millions of dollars, except per share data)	Quarter		Quarter		Quarter		Quarter

2012

Sales	$	279.5	$	305.6	$	340.3	$	355.8
Gross profit		67.5		76.5		79.3		86.4
Net earnings		10.9		19.3		26.3		25.4

Basic earnings per share		0.35		0.57		0.78		0.78
Diluted earnings per share		0.34		0.57		0.78		0.76

2011

Sales	$	194.4	$	226.8	$	231.7	$	279.3
Gross profit		46.2		57.4		53.9		69.0
Net earnings		12.4		18.5		14.4		20.7

Basic earnings per share		0.41		0.61		0.47		0.68
Diluted earnings per share		0.40		0.60		0.47		0.67