The following is a summary of the unaudited quarterly financial information for the two years ended December 31, 2017 and 2016 (in thousands, except per share data):



	Three Months Ended
2017	March 31		June 30		September 30		December 31
Net sales	$	279,392	$	291,534	$	292,030	$	301,292
Gross profit	39,205		35,872		39,087		42,011
Net income	13,632		10,933		13,964		28,488
Earnings per common share – basic	0.66		0.53		0.67		1.37
Earnings per common share – diluted	0.65		0.52		0.67		1.36



	Three Months Ended
2016	March 31		June 30		September 30		December 31
Net sales	$	225,544	$	238,831	$	237,168	$	239,247
Gross profit	30,143		28,631		27,818		33,525
Net income	8,599		7,839		5,999		11,402
Earnings per common share – basic	0.42		0.38		0.29		0.55
Earnings per common share – diluted	0.41		0.38		0.29		0.55