The big five
Cannabis
Global users (% of pop. 15-64): 158.8 million (3.8)
Top user nations (% of pop. 15-64): Micronesia and Papua New Guinea (29), Ghana (21.5), Zambia (17.7), Canada (16.8), Australia and New Zealand (13.4), U.S. (12.6).
Canada seems third? Not first, unless I've over-read something of course
