"Almost half of high school students (44 percent) know a student who sells drugs at their school. When asked what drugs are sold at their school:

• 91 percent said marijuana;
• 24 percent said prescription drugs;
• 9 percent said cocaine; and
• 7 percent said ecstasy."

Source

QEV Analytics, LTD., "National Survey of American Attitudes on Substance Abuse XVII: Teens," The National Center on Addiction and Substance Abuse at Columbia University (New York, NY: National Center on Addiction and Substance Abuse at Columbia University, August 2012), p. 2.
http://www.casacolumbia.org/a…