Opium cultivation in Afghanistan down by a fifth / United Nations Office on Drugs and Crime, 26 August 2008
http://www.unodc.org/unodc/en/frontpage/opium-cultivation-in-afghanistan-down-by-a-fifth.html
"Newly released, UNODC's Afghanistan Opium Survey 2008 shows a 19 per cent decrease in opium cultivation to 157,000 hectares, compared to the record harvest of 193,000 in 2007. Owing to a higher yield of 48.8 kg/ha (up from 42.5 kg/ha in 2007), opium production has dropped less dramatically, down 6 per cent from 8,200 to 7,700"
Afghanistan Opium Survey 2008: Executive Sumary
PDF - http://www.unodc.org/documents/publications/Afghanistan_Opium_Survey_2008.pdf
Map of opium cultivation in 2008 in Afghanistan
PDF - http://www.unodc.org/documents/frontpage/opium_cultivation_map_2008_Afghanistan.pdf