Worldwide Coca Cultivation As Estimated by the UN Office on Drugs and Crime: Although global coca bush cultivation in 2014 increased by 10 per cent compared with the previous year, the total area under coca bush cultivation worldwide, 132,300 ha, was the second smallest since the late 1980s. Global coca bush cultivation in 2014 was 19 per cent lower than in 2009, 40 per cent lower than the peak level in 2000 and 31 per cent lower than in 1998.