In 1999, the main subsistence crops were manioc, 812,000 tons; rice, 750,000 tons; sweet potatoes, 135,000 tons; yams, 89,000 tons; and corn, 89,000 tons [REF].
Coffee production in Guinea has fluctuated over time due to illegal coffee smuggling that affected the industry before the country's reforms in the early 1980s.