Substance

% for weekly use

Alcohol

24.0%

Marijuana

16.4%

Cocaine

7.1%

Methamphetamine

4.1%

Amphetamines

8.4%

Sedatives

7.1%

Hallucinogens

4.9%

Anabolic Steroids

6.8%

Opiates

4.7%

Inhalants

5.7%

MDMA

6.2%

Club Drugs

4.9%

Other illegal drugs

6.7%