We need a number of clarifications here. I'm sorry. Both Colorado and Washington had wide open cannabis sales under the medical guise before they formally legalized for non-medical use. At the beginning of their legal full commercial availability, prices in the “recreational” stores were much higher than prices in the medical outlets. So the primary consumers in the early days of legalization, both in Washington and in Colorado, were out-of-staters and a few respectable people who didn't want to go to a physician and get a phony medical recommendation.
The price decrease that we've now seen is not reflected in the data that's being quoted. On a national basis in the U.S., adult use, heavy use of cannabis has soared over the last two decades so that we've now gone from about a million people who are heavy daily users to nearly eight million people who are heavy daily users, but all of that increase has been among adults. The adolescent numbers have been absolutely flat. What explains that stability in adolescent use is an interesting question. One hypothesis is that the decrease in tobacco use among adolescents, which is correlated with cannabis use, is pulling cannabis use down with it.
I think the answer, both in Washington and Colorado, is if you're looking for the impacts of legalization, it's way too soon to tell.