The statistical information I remember is that 44% of Canadians admit to consuming marijuana at least once in their life.
As a researcher on drugs, I can tell you that the figure is probably a bit higher than that. Usually, when people call in and ask questions about drug use, not everyone gives an honest answer. So the percentage may be a bit higher than that.
In drug research, we call that.... We acknowledge that there's probably under-reporting going on with regard to substance use.
The other statistic that I recall is that around 10% of Canadians have used in the last month.