Prevalence of smoking in past 30 days among young adults in major national studies
| Data source | 1991 | 1993 | 1995 | 1997 | 1999 | 2000 |
|---|---|---|---|---|---|---|
| Harvard College Alcohol Survey | 22.3% | 28.5% | 27.8% | |||
| National College Health Risk Behavior Survey | 29.0% | |||||
| Monitoring the Future: college students 1–4 years past high school | 23.2% | 24.5% | 26.8% | 28.3% | 30.6% | 28.2% |
| Monitoring the Future: | ||||||
| All adults ages 19–20 | 27.6% | 29.0% | 33.4% | 34.0% | 33.9% | 32.2% |
| All adults ages 21–22 | 28.3% | 29.2% | 31.8% | 32.3% | 33.7% | 33.6% |
| All adults ages 23–24 | 28.5% | 28.1% | 28.0% | 29.1% | 30.9% | 29.5% |
| National Health Interview Survey—all adults ages 18–24 | 22.9% | 25.8% | 24.8% | 28.7% | 27.9% | 26.8% |