

Percentage of smokers age 12 to 17, according to a Gallup poll, who want to quit: 66.
99 - Nicotine
98 - Smoked methamphetamine
97 - Crack cocaine
92 - Injected methamphetamine
83 - Valium
82 - Seconal
80 - Heroin
80 - Nasal amphetamine
71 - Nasal cocaine
70 - Caffeine
60 - PCP
22 - Marijuana
20 - Ecstasy
19 - Psilocybin
16 - LSD
15 - Mescaline
Source : Chemistry in Britain, December 1998