Earlier quoted context omitted.
Too high or low? It sounds about right to me, if you include the casual smokers in the 35%.
Too high. I do not and did not know any smokers of my age in high school, college, or after. Seriously zero, which would be odd if it was really one-third. And I'm from Oklahoma which has a high rate of smoking, but I associate it with my friends' grandparents.
I'd honestly guess you either didn't notice them or forgot that they smoked. As a former smoker the bars were filled with people smoking until the indoor bans when you could always find some outside.