The Organization of American States has released a new report titled "Report on Drug Use in the Americas, 2015." According to the OAS, it is an "exhaustive analysis of drug use in OAS member states and offers a hemispheric and subregional outlook with respect to the consumption of psychoactive substances in recent years."
The report, by Inter-American Observatory on Drugs, can be downloaded from http://cicad.oas.org/apps/Document.aspx?Id=3208
Data from this report is being analyzed by CSDP's Director of Research Doug McVay, and will be incorporated into our flagship publication Drug War Facts.