Over 130,000 Australians received treatment from 796 publicly-funded alcohol and other drug treatment agencies in 2015-16. The principal drugs that led clients to seek treatment were alcohol (32% of treatment episodes), amphetamines (23%), cannabis (23%) and heroin (6%). The alcohol and other drug client group is an ageing cohort with a median age of 33 years in 2015-16, up from 31 years in 2006-07.