Advertising includes search engine marketing, display advertising, paid social media, catalogs, television advertisements and email.

20172016201520142013
Net advertising spending (MM)$550.0$409.1$278.2$191.3$108.5
Net advertising spending growth34.4%47.1%45.4%76.3%65.6%
Net advertising spending % of total revenues11.7%12.1%12.4%14.5%11.8%