Drug use prevalence is stable around the world, according to the 2014 World Drug Report of the United Nations Office on Drugs and Crime (UNODC), with around 243 million individuals, or 5 per cent of the world's population aged 15-64, having used an illicit drug in 2012. Problem drug users meanwhile numbered about 27 million, roughly 0.6 per cent of the world's adult population, or 1 in every 200 people.