Source: National Survey on Drug Use and Health
| Ratios of Amphetamine Use vs Marijuana Use and Alcohol Use Among New Drug Use Initiates -- Total (1965 - 2003) | |||
|---|---|---|---|
| Year | Amphetamine New Users | Ratio vs Marijuana | Ratio vs Alcohol |
| 1965 | 149,000 | 0.19 | 0.05 |
| 1966 | 218,000 | 0.26 | 0.07 |
| 1967 | 266,000 | 0.19 | 0.07 |
| 1968 | 348,000 | 0.18 | 0.10 |
| 1969 | 443,000 | 0.18 | 0.11 |
| 1970 | 577,000 | 0.21 | 0.14 |
| 1971 | 624,000 | 0.21 | 0.16 |
| 1972 | 626,000 | 0.20 | 0.15 |
| 1973 | 535,000 | 0.15 | 0.13 |
| 1974 | 603,000 | 0.19 | 0.14 |
| 1975 | 573,000 | 0.18 | 0.15 |
| 1976 | 600,000 | 0.19 | 0.15 |
| 1977 | 656,000 | 0.20 | 0.16 |
| 1978 | 593,000 | 0.18 | 0.15 |
| 1979 | 643,000 | 0.21 | 0.16 |
| 1980 | 672,000 | 0.26 | 0.19 |
| 1981 | 595,000 | 0.24 | 0.17 |
| 1982 | 597,000 | 0.26 | 0.17 |
| 1983 | 488,000 | 0.21 | 0.15 |
| 1984 | 424,000 | 0.20 | 0.13 |
| 1985 | 409,000 | 0.19 | 0.13 |
| 1986 | 397,000 | 0.19 | 0.12 |
| 1987 | 377,000 | 0.21 | 0.12 |
| 1988 | 344,000 | 0.20 | 0.12 |
| 1989 | 328,000 | 0.20 | 0.10 |
| 1990 | 317,000 | 0.21 | 0.11 |
| 1991 | 278,000 | 0.16 | 0.10 |
| 1992 | 303,000 | 0.16 | 0.10 |
| 1993 | 399,000 | 0.19 | 0.13 |
| 1994 | 432,000 | 0.18 | 0.13 |
| 1995 | 533,000 | 0.20 | 0.16 |
| 1996 | 577,000 | 0.23 | 0.17 |
| 1997 | 553,000 | 0.21 | 0.15 |
| 1998 | 648,000 | 0.26 | 0.17 |
| 1999 | 706,000 | 0.27 | 0.17 |
| 2000 | 808,000 | 0.29 | 0.17 |
| 2001 | 853,000 | 0.31 | 0.17 |
| 2002 | 775,000 | 0.29 | 0.15 |
| 2003 | 764,000 | 0.31 | -- |
| Averages: | 521,778 | 0.23 | 0.14 |
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