The breakdown of total sales for newspaper publishers, according to North American Industry Classification System code 51311, consists of total sales, and these are made up of advertising sales, which include daily newspapers advertising sales, and general and specialized community newspapers (advertising sales); circulation sales, which include daily newspapers circulation sales; custom printing sales, which include general and specialized community newspapers (circulation sales); distribution of flyers and inserts; and other sales. The table is published every two years (in percent) and displays five years of data.