What was the average THC content in marijuana in the 60s compared to now?

Answers

busterwasmycat

1-2% was fairly normal back in the 60s-70s. Now it runs on the order of 15% or more. there was and still is a lot of variation, of course. But as a general observation, an order of magnitude (factor of 10) increase. Difference between drinking wine and whiskey, say.