I'd guess 10% at most, but probably less (on a semi-regular basis, number for those that have ever tried it is higher).

There's strong selection bias with drug use because drug users tend to cluster together, I suspect it's a lot less common than people think.

> I suspect it's a lot less common than people think.

Demand is not what the weed industry thought it would be.[1]

[1] https://www.foodengineeringmag.com/articles/99944-price-per-...