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BOSTON, MA- According to a new report from Harvard School of Public Health researchers, the prevalence of recent marijuana use among U.S. college students rose from 12.9% to 15.7% between 1993 and 1999, an increase of 22%. Most of the increase occurred between 1993 and 1997. While rates did not increase further in 1999, they did remain at the higher 1997 rate. Use of other illicit drugs followed the same trend, rising significantly between 1993 and 1997, then changing little between 1997 and 1999.
From this report app. 84% of the student population did not use marijuana recently during the years 1993 to 1997 with little change from 1997 to 1999.
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