[dkpat24.txt, updated 12/07]

Trends in the prevalence of alcohol use among eighth graders: Monitoring
the Future Study, 1991-2006.

------------------------------------------------------------------------
                              Percent Using Alcohol
Year        ------------------------------------------------------------
                                                            5+ in a row
            Lifetime      Annual      30-Day      Daily      past 2 wks
------------------------------------------------------------------------
2006          40.5         33.6        17.2        0.5         10.9

2005          41.0         33.9        17.1        0.5         10.5
2004          43.9         36.7        18.6        0.6         11.4
2003          45.6         37.2        19.7        0.8         11.9
2002          47.0         38.7        19.6        0.7         12.4
2001          50.5         41.9        21.5        0.9         13.2

2000          51.7         43.1        22.4        0.8         14.1
1999          52.1         43.5        24.0        1.0         15.2
1998          52.5         43.7        23.0        0.9         13.7
1997          53.8         45.5        24.5        0.8         14.5
1996          55.3         46.5        26.2        1.0         15.6

1995          54.5         45.3        24.6        0.7         14.5
1994          55.8         46.8        25.5        1.0         14.5
1993[1]       55.7         45.4        24.3        1.0         13.5
1992          69.3         53.7        26.1        0.6         13.4
1991          70.1         54.0        25.1        0.5         12.9

-------------------------------------------------------------------------

Prevalence refers to the proportion or percentage of the sample reporting
use on 1 or more occasions in a given time interval--e.g., lifetime, past
12 months, or past 30 days.  The prevalence of daily use usually refers
to use on 20 or more occasions in the past 30 days.  Five or more in the
past 2 weeks, or "binge drinking," refers to 5 or more drinks in a row
during the prior 2-week interval.

Source: National Institute on Drug Abuse. Johnston, L.D., O'Malley, P.M.,
        Bachman, J.G., and Schulenberg, J.E. (2007), University of Michigan,
        Institute for Social Research, Monitoring the Future National Results
        on Adolescent Drug Use: Overview of Key Findings, 2006. Bethesda, MD:
        NIDA, NIH, Publication No. 07–6202.

        National Institute on Drug Abuse. Johnston, L.D., O'Malley, P.M.,
        Bachman, J.G., and Schulenberg, J.E. (2007), University of Michigan,
        Institute for Social Research, Monitoring the Future National Survey
        Results on Drug Use, 1975-2006 Volume I: Secondary School Students.
        Bethesda, MD: NIDA, NIH, Publication No. 07–6205.

[1] Split forms, 3 with a slight wording change indicating that "drink" meant
    "more than a few sips," and 3 with the original wording.