Advertising primarily consists of direct mail, email, the website and trade shows.

20162015201420132012
Net advertising spending (MM)$4.8$4.8$4.3$4.1$3.5
Net advertising spending growth-1.4%11.2%5.9%15.7%19.2%
Net advertising spending % of total revenues5.7%5.7%5.2%5.2%4.9%