Afghanistan Opium Survey released by the Ministry of Counter Narcotics (MCN) and the UN Office on Drugs and Crime (UNODC) found that opium cultivation rose by 7 percent in 2011 compared with last year. Opium production also climbed 61 percent this year. Afghanistan produces more than 90 percent of the worlds opium, much of which is processed into heroin. Earnings from opium make up about a third of the countrys gross domestic product. It is a major source of income to the Taliban, who levy a 10 percenttax on its production. Various warlords and government officials are involved in the opium trade. Ahmed Wali Karzai, the brother of Afghan President Hamid Karzai, had been implicated in the opium trade. The number of opium addicts in Afghanistan has skyrocketed in recent years. At present there are millions of addicts and the number would only rise in the absence of serious efforts by the occupying powers. MUZAMMIL MUJAHID BHATTI, Rawalpindi, October 12.