UNODC
The United Nations Office on Drugs and Crime (UNODC) publishes the World Drug Report annually.
The data in the 2017 Report are mainly based on information provided by the 107 states or territories in the annual report questionnaire (ARQ) between March and December 2016 and that describe the drug situation in 2016.
While for Europe (90%) and Asia (63%) the majority of the member countries filed a report, data for North and South America (44%) and for Africa and Oceania (21% respectively) is more incomplete. Lacking or insufficient data have been, when possible, complemented by additional sources.