Here is another article on the study for north American stats. WSJ might be a capitalist shit rag but they rarely publish nonsense data

http://deloitte.wsj.com/cmo/are-consumers-adlergic-a-look-at-ad-blocking-habits-1522728141

That’s where the approx 30% for NA comes from.

Idk how accurate those addon numbers are, they’re probably not capturing stats for global numbers but user accounts are.