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Look at the bar graph below. Then, answer the questions.

1. Which group had the greatest decrease in drug use between 1997 and 2002?

a. 8th-graders

b. 10th-graders

c. 12th-graders

2. Which group had the smallest decrease in drug use between 1997 and 2002?

a. 8th-graders

b. 10th-graders

c. 12th-graders

3. In 1997, what was the difference between illicit drug use among 8^th-graders and 10^th-graders?

a. 18.6 percent

b. 8.4 percent

c. 13.4 percent

4. In 2002, what was the difference between illicit drug use among 10^th-graders and 12^th-graders?

a. 2.4 percent

b. 3.2 percent

c. 4.6 percent

5. What percentage of 8^th-graders did not use illicit drugs in 2002?

a. 10.4 percent

b. 89.6 percent

c. 96.4 percent

6. If the trend were to continue, what percentage of 12^th-graders would report using drugs in 2007?

a. 23.2 percent

b. 27 percent

c. 24.6 percent

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