What, no data for Colombia?! This map shows the street price of a gram of "cocaine", as advertised, but it doesn't tell us anything about the purity of that gram. A recent police report in the UK suggested street purity had dropped from 30% to around 9%, compared to the 70% of stuff hot out of the factory. A recent government sponsored report on drugs misuse in Britain found the supply chain to be completely flexible: big busts higher up the chain would simply result in more cutting agents added lower down, with customers seemingly willing to pay standard street price for whatever purity they could get. Demand is rising, if anything. It's interesting that police have now turned their attention to the supply chain of the cutting agents. We're fighting a war on laxatives.