Figure 2.1 is titled "Types of Drugs Used by Past Month Illicit Drug Users Aged 12 or Older: 2004." It is a pie chart, with the following note below the chart: "19.1 Million Past Month Illicit Drug Users." The pie chart shows the percentages of types of drugs used by past month illicit drug users. Of the 19.1 million past month illicit drug users, 56.8 percent used marijuana only, 19.7 percent used marijuana and some other drug, and 23.6 percent only used a drug other than marijuana.

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This page was last updated on May 20, 2008.

SAMHSA, an agency in the Department of Health and Human Services, is the Federal Government's lead agency for improving the quality and availability of substance abuse prevention, addiction treatment, and mental health services in the United States.