Quarterly Results (Unaudited) (Tables)

12 Months Ended

Dec. 31, 2020

Quarterly Results (Unaudited)

Quarterly operating data (unaudited)

	Fiscal 2020
	First		Second		Third		Fourth
	Quarter		Quarter		Quarter		Quarter
Sales	$	2,476,487	$	3,091,595	$	3,207,638	$	2,828,773
Gross profit		1,295,906		1,637,180		1,680,468		1,472,138
Operating income		423,561		736,490		725,013		534,272
Net income		300,438		531,667		527,252		392,945
Earnings per share – basic (1)	$	4.00	$	7.16	$	7.13	$	5.45
Earnings per share – assuming dilution (1)	$	3.97	$	7.10	$	7.07	$	5.40

	Fiscal 2019
	First		Second		Third		Fourth
	Quarter		Quarter		Quarter		Quarter
Sales	$	2,410,608	$	2,589,874	$	2,666,528	$	2,482,975
Gross profit		1,279,290		1,368,287		1,422,530		1,324,584
Operating income		444,786		498,074		536,363		441,503
Net income		321,152		353,681		391,293		324,916
Earnings per share – basic (1)	$	4.09	$	4.56	$	5.14	$	4.29
Earnings per share – assuming dilution (1)	$	4.05	$	4.51	$	5.08	$	4.25

(1) Earnings per share amounts are computed independently for each quarter and annual period.  The quarterly earnings per share amounts may not sum to equal the full-year earnings per share amount.