I did some quick research and according to the CDC approximately 25% of the adult U.S. public smoked in 1997. That has not gone down much in the ensuing years. The report I read was through 2009 and it showed a 4% decrease during those 12 years. I doubt it has changed much between 2009 and 2011. So, it can be said that 75% of the adult population didn't smoke in 1997, and about 80% do not smoke now.
I'm not making a statement with this, just posting some statistical data.
As I recall, the Paradise experiment with zero tolerance lasted only around 5 years before the first legal cigarette was fired up in an official ceremony led by the Marlboro Man.