Not a significant number, no. Especially not for something so many people view as a silly law. I can't even imagine the rationale behind "I want to smoke, but I can't because it's illegal."
To answer both of you, I don't usually associate with retards, so that might be part of it. It's really quite easy to smoke and not get caught. Or I know a bunch of criminal masterminds.
That and it's ridiculously easy to get a card these days.