Magnified View of Graphic
Source: Monitoring the Future
| Ratios of Crack to Alcohol Use -- Lifetime Use (1986 - 2004) | |||
|---|---|---|---|
| Year | Ages 19 to 28 | College Students | 12th Grade Students |
| 1986 | -- | -- | -- |
| 1987 | 0.066 | 0.035 | 0.059 |
| 1988 | 0.073 | 0.036 | 0.052 |
| 1989 | 0.065 | 0.026 | 0.052 |
| 1990 | 0.054 | 0.015 | 0.039 |
| 1991 | 0.051 | 0.016 | 0.035 |
| 1992 | 0.055 | 0.019 | 0.030 |
| 1993 | 0.047 | 0.015 | 0.033 |
| 1994 | 0.048 | 0.011 | 0.037 |
| 1995 | 0.041 | 0.020 | 0.037 |
| 1996 | 0.043 | 0.014 | 0.042 |
| 1997 | 0.040 | 0.016 | 0.048 |
| 1998 | 0.042 | 0.025 | 0.054 |
| 1999 | 0.048 | 0.027 | 0.058 |
| 2000 | 0.051 | 0.029 | 0.049 |
| 2001 | 0.052 | 0.023 | 0.046 |
| 2002 | 0.048 | 0.022 | 0.048 |
| 2003 | 0.053 | 0.036 | 0.047 |
| 2004 | 0.047 | 0.024 | 0.051 |
| Averages: | 0.051 | 0.023 | 0.045 |
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