[dkpatx2.txt, updated 12/07]

Trends in the prevalence of reporting as having been drunk among
tenth graders: Monitoring the Future Study, 1991-2006.

--------------------------------------------------------------------
                                  Been Drunk
Year         -------------------------------------------------------

                 Lifetime      Annual      30-Day      Daily
--------------------------------------------------------------------
2006              41.4          34.5        18.8        0.5

2005              42.1          34.2        17.6        0.4
2004              42.3          35.1        18.5        0.4
2003              42.4          34.7        18.2        0.5
2002              44.0          35.4        18.3        0.5
2001              48.2          39.9        21.9        0.6

2000              49.3          41.6        23.5        0.5
1999              48.9          40.9        22.5        0.7
1998              46.7          38.3        21.1        0.6
1997              49.4          40.7        22.4        0.6
1996              48.5          40.1        21.3        0.4

1995              46.9          38.5        20.8        0.6
1994              47.2          38.0        20.3        0.4
1993              47.9          37.8        19.8        0.4
1992              47.7          37.0        18.1        0.3
1991              50.0          40.1        20.5        0.2

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Prevalence refers to the proportion or percentage of the sample
reporting having been drunk on 1 or more occasions in a given time
interval--e.g., lifetime, past 12 months, or past 30 days.  Daily
usually refers to 20 or more occasions in the past 30 days.

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.