With 2.8 percent of the population addicted to drugs, Iran has the high rate of drug addiction, that rivals the 10 - 15% in Afghanistan. 40% of prisoners in Iran have been convicted on drug related charges.According to published figures, Iran has so far lost close to 3,500 police and security officers to the anti-drug campaign that annually costs the country almost $1 billion and inflicts an annual damage of about $8.5 billion on Iran's economy. Hundreds of drug smugglers have also been hanged.