I came across this powerpoint presentation today made on a possible ban on ultra-slims. It goes on for a while, but the conclusion is at the top. Of course this was conducted by questioning lots of smokers, mostly women you notice, on their buying habits.
Perhaps the test is rigged to show girls would go to black market dealers (i.e. street sellers) if ultra-slims were banned, by only showing ultra-slims clearly in the street seller bracket/category?