Cannabis was the most common illegal drug taken; one-third of students reported having taken it at least once in in the year prior to the survey (Table 1). Cocaine was also commonly used, with 13% taking it during the same time period. Ecstasy was taken by 12% of respondents. Similar proportions took magic mushrooms (7%) and amphetamines (7%). Five per cent were prescribed tranquillisers and 3% took tranquillisers that were not prescribed for them. Similar proportions took LSD and solvents. Only 0.9% took heroin, and 0.5% injected an illicit drug, in the last year. Almost 18% of respondents took more than one drug concurrently (polydrug use). Men were marginally more likely to take drugs than women. The authors state that the high rates of drug use have implications for physical and mental health.