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Rise in Marijuana Use Drives Upswing Description

This graph displays how the 6.6 percent increase in marijuana usage drove up overall illicit drug use for 2009Rise in Marijuana Use Drives Upswing: Marijuana is the most commonly used illicit drug, with 16.7 million people aged 12 and older reporting past-month use in 2009. A 6.6 percent increase in usage—the highest in 8 years—drove up overall illicit drug use.

This line graph, titled "Rise in Marijuana Use Drives Upswing," displays how the 6.6 percent increase in marijuana usage drove up overall illicit drug use for 2009. The graph shows data for any illicit drug use (red dot), marijuana (blue diamond), prescription drugs (black square), cocaine (green triangle), and hallucinogens (tan star). The horizontal axis represents years, from 2002 through 2009, and the vertical axis shows the percentage using within the past month.

In 2002, any illicit drug use had 8.3 percent using in the past month, marijuana had 6.2 percent using in the past month, prescription drugs had 2.8 percent using in the past month, cocaine had .9 percent using in the past month, and hallucinogens had .5 percent using in the past month.

In 2003, any illicit drug use had 8.1 percent using in the past month, marijuana had 6.2 percent using in the past month, prescription drugs had 2.8 percent using in the past month, cocaine had 1 percent using in the past month, and hallucinogens had .4 percent using in the past month.

In 2004, any illicit drug use had 8 percent using in the past month, marijuana had 6.1 percent using in the past month, prescription drugs had 2.5 percent using in the past month, cocaine had .9 percent using in the past month, and hallucinogens had .4 percent using in the past month.

In 2005, any illicit drug use had 8.1 percent using in the past month, marijuana had 6 percent using in the past month, prescription drugs had 2.8 percent using in the past month, cocaine had 1 percent using in the past month, and hallucinogens had .4 percent using in the past month.

In 2006, any illicit drug use had 8.2 percent using in the past month, marijuana had 6 percent using in the past month, prescription drugs had 2.9 percent using in the past month, cocaine had 1 percent using in the past month, and hallucinogens had .4 percent using in the past month.

In 2007, any illicit drug use had 8 percent using in the past month, marijuana had 5.8 percent using in the past month, prescription drugs had 2.8 percent using in the past month, cocaine had .8 percent using in the past month, and hallucinogens had .4 percent using in the past month.

In 2008, any illicit drug use had 8 percent using in the past month, marijuana had 6.1 percent using in the past month, prescription drugs had 2.5 percent using in the past month, cocaine had .7 percent using in the past month, and hallucinogens had .4 percent using in the past month.

In 2009, any illicit drug use had 8.7 percent using in the past month, marijuana had 6.6 percent using in the past month, prescription drugs had 2.9 percent using in the past month, cocaine had .7 percent using in the past month, and hallucinogens had .6 percent using in the past month.

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