
| Age 12 or 13 | Age 14 or 15 | Age 16 or 17 | |
|---|---|---|---|
| Smoking One or More Packs of Cigarettes Per Day | 69.7% | 68.8% | 69.3% |
| Having Five or More Drinks of Alcohol Once or Twice a Week | 43.3% | 39.5% | 37.4% |
| Smoking Marijuana Once a Month | 42.7% | 34.4% | 26.2% |
| Using Cocaine Once a Month | 42.8% | 49.0% | 56.5% |
| Trying Heroin Once or Twice | 46.7% | 56.8% | 67.5% |
| Trying LSD Once or Twice | 44.4% | 49.9% | 57.4% |