Classes of illicit drugs consumed in the ecstasy, amphetamine, and cannabis groups.

Data are percentage of subjects that have consumed the class of illicit drug in their lifetime. The term ‘hallucinogen’ describes LSD (lysergic acid diethylamide), LSA (d-lysergic acid amide), ‘magic’ mushrooms, DOI (2,5-dimethoxy-4-iodoamphetamine), and/or mescaline. The term ‘opiate’ describes heroin, methadone, opium, and recreational use of codeine, oxycodeine, and/or morphine (total use