*These questions are based on the responses of a national sample of 12th graders who were surveyed in 2000.

Source: The Monitoring the Future Study, University of Michian
4. What percentage of 12th graders see "great risk" in using Ecstasy (MDMA) once or twice?

15 to 20 percent
35 to 40 percent
55 to 60 percent
80 to 85 percent