"The annual prevalence of cocaine use in South America (1.3 per cent of the adult population) is comparable to levels in North America, while it remains much higher than the global average in Central America (0.6 per cent) and the Caribbean (0.7 per cent).
"Cocaine use has increased significantly in Brazil, Costa Rica and, to lesser extent, Peru while no change in its use was reported in Argentina. The use of cannabis in South America is higher (5.7 per cent) than the global average, but lower in Central America and Caribbean (2.6 and 2.8 per cent respectively). In South America and Central America the use of opioids (0.3 and 0.2 per cent, respectively) and Ecstasy (0.1 per cent each) also remain well below the global average. While opiates use remains low, countries such as Colombia report that heroin use is becoming increasingly common among certain age groups and socio-economic classes.30"

Source

UNODC, World Drug Report 2013 (United Nations publication, Sales No. E.13.XI.6), pp. 13-14.
https://www.unodc.org/unodc/s…