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Table 9 Initiation rates for other illegal drugs by YOB cohorts (N = 2364). With the exception of "magic mushrooms," and ecstasy (a psychedelic made illegal in 1988), initiation rates for all Schedule One drugs have declined since 1975.

From: Long term marijuana users seeking medical cannabis in California (2001–2007): demographics, social characteristics, patterns of cannabis and other drug use of 4117 applicants

  1936–45 1946–55 1956–65 1966–75 1976–85
Psilocybin 61.36% 74.52% 71.06% 71.07% 74.58%
LSD 67.05% 79.56% 63.79% 61.68% 50.60%
P/M 60.92% 65.75% 40.89% 22.27% 15.09%
Cocaine 81.82% 87.60% 81.50% 63.59% 54.40%
Meth 44.83% 60.44% 57.21% 48.28% 31.56%
MDMA 16.28% 16.57% 20.79% 51.49% 55.89%
Heroin 25.29% 33.06% 16.67% 13.02% 7.69%