The military conflict that took place in Guinea-Bissau from June 1998 to early 1999 caused severe damage to the country's infrastructure and widely disrupted economic activity. Agricultural production is estimated to have fallen by 17% during the conflict, and the civil war led to a 28% overall drop in gross domestic product (GDP) in 1998. Cashew nut output, the main export crop, declined in 1998 by an estimated 30%. World cashew prices dropped by more than 50% in 2000, compounding the economic devastation caused by the conflict. Before the war, trade reform and price liberalization were the most successful part of the country's structural adjustment program under International Monetary Fund (IMF) sponsorship. Under the government's post-conflict economic and financial program, implemented with IMF and World Bank input, real GDP recovered in 1999 by almost 8%. In December 2000 Guinea-Bissau qualified for almost $800 million in debt-service relief under the first phase of the enhanced Heavily Indebted Poor Countries (HIPC) initiative. However, Guinea-Bissauís Poverty Reduction and Growth Fund program with the IMF was suspended that same month--following disbursement of the first tranche--due to off-program expenditures by the Yala regime. Thus, IMF and Paris Club internal debt relief for Guinea-Bissau was also suspended in 2001. Presently, Guinea-Bissau is benefiting from World Bank and African Development Bank debt relief.