	Three Months Ended
	March 31			June 30		September 30			December 31
*2013*
Net sales	$	1,079,805		$	1,136,067	$	1,153,062		$	1,245,735
Gross profit	337,892			359,788		363,848			389,306
Operating income	206,957			224,013		224,483		(2)	241,360		(3)
Net income attributable to Amphenol Corporation	153,007		(1)	153,988		160,798		(2)	167,879		(3)
Net income per common share—Basic	0.96		(1)	0.96		1.01		(2)	1.06		(3)
Net income per common share—Diluted	0.94		(1)	0.95		0.99		(2)	1.04		(3)
*2012*
Net sales	$	981,604		$	1,061,107	$	1,103,376		$	1,145,978
Gross profit	309,271			334,161		344,329			355,451
Operating income	185,279			206,176		215,670			221,220		(4)
Net income attributable to Amphenol Corporation	126,563			140,942		147,450			140,362		(4)
Net income per common share—Basic	0.78			0.87		0.91			0.88		(4)
Net income per common share—Diluted	0.77			0.86		0.90			0.86		(4)

(1) Net income and net income per common share includes an income tax benefit of $11,300, or $0.07 per share, resulting from the delay, by the U. S. government, in the reinstatement of certain federal income tax provisions for the year 2012 relating primarily to research and development credits and certain U.S. taxes on foreign income. Such tax provisions were reinstated on January 2, 2013 with retroactive effect to 2012. Under U.S. GAAP, the benefit to the Company of $11,300 or $0.07 per share, relating to the 2012 tax year was recorded as a benefit in the first quarter of 2013 at the date of reinstatement. Excluding this effect, net income per common share-diluted was $0.87 for the three months ended March 31, 2013.

(2) Operating income, net income and net income per common share includes acquisition-related transaction expenses of $2,500, $2,100 after tax, or $0.01 per share, relating to 2013 acquisitions. Net income and net income per common share also includes a $3,600, or $.02 per share, income tax benefit due primarily to the favorable completion of prior year audits. Excluding the effect of these items, net income per common share-diluted was $0.98 for the three months ended September 30, 2013.

(3) Operating income, net income and net income per common share includes acquisition-related expenses of $3,400, $2,400 after tax, or $0.01 per share, relating to 2013 acquisitions. Excluding this effect, net income per common share-diluted was $1.05 for the three months ended December 31, 2013.

(4) Operating income, net income and net income per common share includes acquisition-related expenses of $2,000, $2,000 after tax, or $0.01 per share, relating to 2012 acquisitions. Net income and net income per common share also includes income tax costs relating to a delay, by the U.S. government, in the reinstatement of certain federal income tax provisions for the year 2012 of $11,300, or $0.07 per share, relating primarily to research and development credits and certain U.S. taxes on foreign income. Such tax provisions were reinstated on January 2, 2013 with retroactive effect to 2012 as discussed above. Net income per common share-diluted for the three months ended December 31, 2012, excluding the effects of these items, is $0.94.