On: Marijuana Legalization Fails in California

[axod]

http://www.nationmaster.com/graph/lif_can_use-lifestyle-cann...

Suggests it's 12.3% in the US which I find more believable.

The study you cited seems to ask "...EVER used". Which could just mean took one puff once when very drunk.

[sukuriant → axod]

Forgive me, but the link you're citing marks 81% by age 45 have tried cannabis at one point. Where are you getting your 12.3?