"In 2010 an estimated 25 per cent of the 380 tons of heroin manufactured in Afghanistan -some 90 tons- was trafficked northwards through Central Asia via the Northern route and onward to the Russian Federation. The 90-ton total includes heroin consumed within Central Asia and the Russian Federation, as well as heroin seized by law enforcement or trafficked onward. More than three quarters of this amount are destined for the Russian market, with a small portion (approximately 3-4 tons) continuing to eastern and northern Europe.1 Furthermore, in 2010 between 35 and 40 tons of raw opium were trafficked through northern Afghanistan towards Central Asian markets. The entire 2010 opiate demand of the Northern route is required to transit or be produced in northern Afghanistan."
United Nations Office on Drugs and Crime. Opiate Flows Through Northern Afghanistan and Central Asia: A Threat Assessment. UNODC Afghan Opiate Trade Project of the Studies and Threat Analysis Section (STAS), Division for Policy Analysis and Public Affairs, May 2012.