7. Iran
We are continuing our list of most drug addicted countries in the world in 2017 with Iran which is right after the USA when it comes to death rate due to substance abuse (6.28 in 100.000 people). The data shows that, 2.8 million people are regularly consuming drugs. 67 % of them are using opium. The statistical data show that the number of drug addicts has increased in the past couple of years.
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