Advertising includes paid search advertising, search engine optimization, affiliate programs, e-mail marketing, print catalogues and inclusion in online shopping engines.

20162015201420132012
Net advertising spending (MM)$22.6$20.3$18.5$16.6$21.1
Net advertising spending growth11.7%9.6%11.2%-21.1%-25.9%
Net advertising spending % of total revenues7.4%7.0%6.5%6.5%6.9%