Percentage of U.S. 12th Grade Students Reporting Past Month Use of Cigarettes and Marijuana, 1975 to 2009

Year 1975: Cigarettes 36.7, Marijuana 27.1

Year 1976: Cigarettes 38.8, Marijuana 32.2

Year 1977: Cigarettes 38.4, Marijuana 35.4

Year 1978: Cigarettes 36.7, Marijuana 37.1

Year 1979: Cigarettes 34.4, Marijuana 36.5

Year 1980: Cigarettes 30.5, Marijuana 33.7

Year 1981: Cigarettes 29.4, Marijuana 31.6

Year 1982: Cigarettes 30.0, Marijuana 28.5

Year 1983: Cigarettes 30.3, Marijuana 27.0

Year 1984: Cigarettes 29.3, Marijuana 25.2

Year 1985: Cigarettes 30.1, Marijuana 25.7

Year 1986: Cigarettes 29.6, Marijuana 23.4

Year 1987: Cigarettes 29.4, Marijuana 21.0

Year 1988: Cigarettes 28.7, Marijuana 18.0

Year 1989: Cigarettes 28.6, Marijuana 16.7

Year 1990: Cigarettes 29.4, Marijuana 14.0

Year 1991: Cigarettes 28.3, Marijuana 13.8

Year 1992: Cigarettes 27.8, Marijuana 11.9

Year 1993: Cigarettes 29.9, Marijuana 15.5

Year 1994: Cigarettes 31.2, Marijuana 19.0

Year 1995: Cigarettes 33.5, Marijuana 21.2

Year 1996: Cigarettes 34.0, Marijuana 21.9

Year 1997: Cigarettes 36.5, Marijuana 23.7

Year 1998: Cigarettes 35.1, Marijuana 22.8

Year 1999: Cigarettes 34.6, Marijuana 23.1

Year 2000: Cigarettes 31.4, Marijuana 21.6

Year 2001: Cigarettes 29.5, Marijuana 22.4

Year 2002: Cigarettes 26.7, Marijuana 21.5

Year 2003: Cigarettes 24.4, Marijuana 21.2

Year 2004: Cigarettes 25.0, Marijuana 19.9

Year 2005: Cigarettes 23.2, Marijuana 19.8

Year 2006: Cigarettes 21.6, Marijuana 18.3

Year 2007: Cigarettes 21.6, Marijuana 18.8

Year 2008: Cigarettes 20.4, Marijuana 19.4

Year 2009: Cigarettes 20.1, Marijuana 20.6

Year 2010: Cigarettes 19.2, Marijuana 21.4