Source: National Survey on Drug Use and Health
| Ratios of LSD Use vs Marijuana Use and Alcohol Use Among New Drug Use Initiates -- 12 to 17 (1965 - 2003) | |||
|---|---|---|---|
| Year | LSD New Users | Ratio vs Marijuana | Ratio vs Alcohol |
| 1965 | -- | -- | -- |
| 1966 | 42,000 | 0.15 | 0.03 |
| 1967 | 52,000 | 0.10 | 0.03 |
| 1968 | 209,000 | 0.25 | 0.10 |
| 1969 | 244,000 | 0.24 | 0.11 |
| 1970 | 342,000 | 0.28 | 0.14 |
| 1971 | 347,000 | 0.27 | 0.14 |
| 1972 | 460,000 | 0.28 | 0.17 |
| 1973 | 403,000 | 0.23 | 0.15 |
| 1974 | 409,000 | 0.21 | 0.14 |
| 1975 | 312,000 | 0.17 | 0.12 |
| 1976 | 284,000 | 0.15 | 0.11 |
| 1977 | 311,000 | 0.16 | 0.11 |
| 1978 | 261,000 | 0.13 | 0.10 |
| 1979 | 388,000 | 0.22 | 0.14 |
| 1980 | 359,000 | 0.23 | 0.15 |
| 1981 | 319,000 | 0.22 | 0.13 |
| 1982 | 288,000 | 0.21 | 0.12 |
| 1983 | 222,000 | 0.15 | 0.10 |
| 1984 | 196,000 | 0.15 | 0.08 |
| 1985 | 266,000 | 0.20 | 0.12 |
| 1986 | 247,000 | 0.20 | 0.10 |
| 1987 | 287,000 | 0.26 | 0.14 |
| 1988 | 254,000 | 0.24 | 0.13 |
| 1989 | 231,000 | 0.24 | 0.11 |
| 1990 | 251,000 | 0.30 | 0.13 |
| 1991 | 302,000 | 0.29 | 0.16 |
| 1992 | 284,000 | 0.24 | 0.14 |
| 1993 | 282,000 | 0.21 | 0.13 |
| 1994 | 400,000 | 0.26 | 0.18 |
| 1995 | 404,000 | 0.24 | 0.18 |
| 1996 | 413,000 | 0.26 | 0.18 |
| 1997 | 392,000 | 0.23 | 0.15 |
| 1998 | 401,000 | 0.24 | 0.15 |
| 1999 | 397,000 | 0.23 | 0.14 |
| 2000 | 392,000 | 0.21 | 0.12 |
| 2001 | 314,000 | 0.17 | 0.09 |
| 2002 | 170,000 | 0.09 | 0.05 |
| 2003 | 147,000 | 0.09 | -- |
| Averages: | 309,333 | 0.22 | 0.13 |
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