"In June 2013, the Federal District of Mexico released the results of a survey on the use of drugs among students in Mexico City. Based on a sample of over 26,500 high school and higher education students, the survey reveals an increase in illegal drug abuse led by cannabis, cocaine, 'crack' cocaine and hallucinogenics. The most significant increase was noted for cannabis: past-year usage rose by four percentage points, from 8.2 per cent in 2009 to 12.2 per cent in 2012. In contrast to declining prevalence rates for cocaine abuse in North America as a whole, the figures for past-year cocaine abuse among those students also rose, from 1.7 per cent in 2009 to 2.5 per cent in 2012."
"Report of the International Narcotics Control Board for 2013," International Narcotics Control Board (Vienna, Austria: January 2014), p. 55.
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