11. Total Market Size Source: IAB Europe/PricewaterhouseCoopers € 7,992 million
12. Total split by actual, adjusted and estimated data Source: IAB Europe/PricewaterhouseCoopers Actual Estimated Adjusted
13. Total for each country Source: IAB Europe/PricewaterhouseCoopers Millions
14. Market Share by Format Source: IAB Europe/PricewaterhouseCoopers
15. Share of European Market by country Source: IAB Europe/PricewaterhouseCoopers
16. Share of European and US Markets Source: IAB Europe/ IAB US/ PricewaterhouseCoopers
17. Expenditure per user Source: IAB Europe/ IAB US/ PricewaterhouseCoopers/ www.internetworldstats.com/Stats 4 Average European investment = €39.1 per active user
18. Market share* in 7 highest value markets Source: IAB Europe/PricewaterhouseCoopers/WARC * Calculated using IAB Europe data as % of total advertising market value (WARC data)