"Psychotropic Drugs." . . "Drug and Narcotic Control." . . . . "Narcotics." . . "Supply and Distribution." . . "Prevention and Control." . . . . . . . . "Supply of and trafficking in narcotic drugs and psychotropic substances, 1996"@en . . . . . . "Based on data obtained from annual reports questionnaires (ARQ) received by UNDCP up to 31 January 1998. Where information was lacking, additional sources were used. The statistics and analysis presented cover the period 1986 to 1996, with a focus on 1996, and include estimates for 1997 where available."@en . . . . . . . "Statistics"@en . . . . . . . . . . "Statistics and analysis on supply of and trafficking in narcotic drugs and psychotropic substances 1996"@en . . "Supply of and trafficking in narcotic drugs and psychotropic substances : 1996" .