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SELECTED QUARTERLY FINANCIAL DATA (UNAUDITED)

12 Months Ended

Dec. 31, 2017

SELECTED QUARTERLY FINANCIAL DATA (UNAUDITED) [Abstract]

SELECTED QUARTERLY FINANCIAL DATA (UNAUDITED)

SELECTED QUARTERLY FINANCIAL DATA (UNAUDITED)

A summary of selected quarterly information for 2017 and 2016 is as follows (in thousands of dollars, except for per share amounts):



		2017 Quarter Ended
		March 31				June 30				September 30				December 31				Total
Net sales		$	2,541,129			$	2,615,269			$	2,635,999			$	2,632,461			$	10,424,858
Cost of merchandise sold		1,521,937				1,575,313				1,618,819				1,611,232				6,327,301
Gross profit		1,019,192				1,039,956				1,017,180				1,021,229				4,097,557
Warehousing, marketing and administrative expenses		723,704				807,891				736,010				781,290				3,048,895
Operating earnings		295,488				232,065				281,170				239,939				1,048,662
Net earnings attributable to W.W. Grainger, Inc.		174,744				97,921				162,006				151,059				585,730
Earnings per share - basic		2.95				1.68				2.80				2.64				10.07
Earnings per share - diluted		$	2.93			$	1.67			$	2.79			$	2.63			$	10.02



		2016 Quarter Ended
		March 31				June 30				September 30				December 31				Total
Net sales		$	2,506,538			$	2,563,668			$	2,596,288			$	2,470,710			$	10,137,204
Cost of merchandise sold		1,461,485				1,523,609				1,556,536				1,481,017				6,022,647
Gross profit		1,045,053				1,040,059				1,039,752				989,693				4,114,557
Warehousing, marketing and administrative expenses		727,961				734,470				717,165				815,464				2,995,060
Operating earnings		317,092				305,589				322,587				174,229				1,119,497
Net earnings attributable to W.W. Grainger, Inc.		186,713				172,676				185,873				60,666				605,928
Earnings per share - basic		3.00				2.81				3.07				1.02				9.94
Earnings per share - diluted		$	2.98			$	2.79			$	3.05			$	1.01			$	9.87