Ratios of Marijuana Use to Alcohol Use by 12th Grade Students (1975 - 2005)

Source: Monitoring the Future

Ratios of Marijuana Use vs Alcohol Use Among 12th Grade Students (1975 - 2005)
Year Lifetime Past Year Past Month
1975 0.52 0.47 0.40
1976 0.57 0.52 0.47
1977 0.61 0.55 0.50
1978 0.64 0.57 0.51
1979 0.65 0.58 0.51
1980 0.65 0.56 0.47
1981 0.64 0.53 0.45
1982 0.63 0.51 0.41
1983 0.62 0.48 0.39
1984 0.59 0.47 0.38
1985 0.59 0.47 0.39
1986 0.56 0.46 0.36
1987 0.54 0.42 0.32
1988 0.51 0.39 0.28
1989 0.48 0.36 0.28
1990 0.45 0.33 0.25
1991 0.42 0.31 0.26
1992 0.37 0.29 0.23
1993 0.44 0.36 0.32
1994 0.48 0.42 0.38
1995 0.52 0.47 0.41
1996 0.57 0.49 0.43
1997 0.61 0.51 0.45
1998 0.60 0.50 0.44
1999 0.62 0.51 0.45
2000 0.61 0.50 0.43
2001 0.61 0.50 0.45
2002 0.61 0.51 0.44
2003 0.60 0.50 0.45
2004 0.60 0.49 0.41
2005 0.60 0.49 0.42
Averages: 0.56 0.47 0.40

Navigate to Other Available Data

12th Grade Marijuana Use Overview Other Drugs vs Marijuana Use Ratios Other Drugs vs Both Alcohol & Marijuana Use Ratios
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