Additional Note: Digital ad spending historical data up to 2015 is derived from Interactive Advertising Bureau (IAB)/PricewaterhouseCoopers (PwC) data. Insurance includes animals and livestock, arts, and valuables, automotives, aviation, boats and yachts, businesses, credit, flood, home, life, malpractice, mutual, travel and wedding.
Methodology: Estimates are based on the analysis of various elements related to the ad spending market, including macro-level economic conditions; historical trends of the advertising market; historical trends of each medium in relation to other media; reported revenues from major ad publishers; estimates from other research firms; data from benchmark sources; consumer media consumption trends; consumer device usage trends; and EMARKETER interviews with executives at ad agencies, brands, media publishers and other industry leaders.