These Three Maps Show How Drugs Move Around the World

Smugglers adjust their routes to match the drug

Afghani security forces burn 21 tons of the narcotic drug in Herat, Afghanistan.

Photographer: Firooz Mashoof/Anadolu Agency/Getty Images
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In 2013, 246 million people worldwide—one of every 20 people between the ages of 15 and 64—used an illegal drug. Some 27 million of those are problem drug users suffering from addiction, dependence, or other disorders.

Combined, they would make up the 27th largest country in the world—nearly the size of Malaysia's population. So how do drugs get delivered to market?