Currently, Afghanistan is one of the biggest producers of opium. While opium also has its uses as a regular drug, it is mainly used as an illegal drug. In 2001, Afghanistan produced only 11% of the world's opium, today it produces over ninety percent. In 2007, 93% of the "non-pharmaceutical-grade" opiates on the world market originated in Afghanistan. This amounts to an export value of about $4 billion; opium farmers earn about a quarter of this amount, the rest goes to district officials, insurgents, warlords, and drug traffickers. The drug trade accounts for half of Afghanistan's GDP. 