Anyway, that is an interesting statistic.
I'll follow up on impairment, and young people with a developing brain, according to the remarks from experts...and I guess we'll learn more from the experts. But I understand there was a round table recently and perhaps you have some comment on the effects of impairment, and young people and the developing brain. Certainly, the person who is impaired is the last one to recognize it, which is one of the challenges. They think they're fine, cool, but their performance is down.
The effect of impairment on judgment, on driving, for example, is a big concern to me. I've seen people actually on 4/20 walking down the street right here in Ottawa as impaired as anybody who is inebriated on alcohol. So just on the impairment, can you comment on what we know about marijuana in terms of impairment?