NOTE 9 – REVENUE

The table below identifies the Company’s revenues disaggregated by major customer type for the years ended December 31, 2018, 2017 and 2016 (in thousands):



	For the Year Ended December 31,
	2018		2017		2016
Sales to do-it-yourself customers	$	5,351,035	$	5,113,288	$	4,911,826
Sales to professional service provider customers	4,035,898		3,724,220		3,540,116
Other sales and sales adjustments	149,495		140,218		141,154
Total sales	$	9,536,428	$	8,977,726	$	8,593,096

As of December 31, 2018 and 2017, the Company had recorded a deferred revenue liability of $4.3 million and $4.7 million, respectively, related to its loyalty program, which were included in “Other liabilities” on the accompanying Consolidated Balance Sheets. During the years ended December 31, 2018, 2017 and 2016, the Company recognized $15.9 million, $17.6 million and $12.7 million, respectively, of deferred revenue related to its loyalty program, which were included in “Sales” on the accompanying Consolidated Statements of Income.