16. Colombia
People treated for drug abuse per million: 25.6
With the TV series Narcos, hardly anyone can stay in ignorance about the presence of drugs in Colombia, the next one on our list of countries with the biggest drug problems in the world. After the death of drug lord, Pablo Escobar, in Medellin, Colombia, criminal cartels changed but the drug problem remained a major issue in Colombia. The freshly published article suggests that (another) cocaine boom is currently happening in Colombia and constant violence on Colombian streets is happening mostly because of drug-related issues.
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