Various estimates put this at somewhere between 15-20%.
15-20%
Approximately 20-25% of teens smoke, at least intermittently (less, for younger teens, and more, for older teens).
740,000 teens between the ages of 13 and 15 are exposed worldwide. In the surveys, nearly half of the teens -- 47% -- reported being exposed to secondhand smoke at home during the previous week. A similar percentage -- 48% -- reported secondhand smoke exposure in other places during the previous week.
Among adults who smoke, 68 percent began smoking regularly at age 18 or younger.
no,
crack and opium
740,000 teens between the ages of 13 and 15 are exposed worldwide. In the surveys, nearly half of the teens -- 47% -- reported being exposed to secondhand smoke at home during the previous week. A similar percentage -- 48% -- reported secondhand smoke exposure in other places during the previous week.
I don't know, but it's definitely less than the number of cool teens who smoke.
93
40% of male teens cheat.
Approximately 1/3 of the population, which would be 2.3 billion smokers.
Of course.