Agriculture, livestock, fishing and forestry together contribute an estimated 13.7 percent of GDP (although this share is declining) and the contribution of tourism is estimated at 7 percent. The contribution of forests to GDP is estimated at between 2.2 to 3 percent. Wood is the main energy source for about 30 percent of the population. Poverty rates fell from 59 percent in 2000 to 39 percent in 2016 as the country has pursued equitable growth policies, which until recently had been facilitated by high commodity prices. This philosophy highlights integration between forests, agriculture, and environmental sustainability, and its principles are incorporated into the most recent 2016-2020 Social and Economic Development Plan, in which forests are recognized as a resource for food production. As part of its development strategy, the Government's policy is to expand agricultural area - mostly to smallholders - while managing forests sustainably for multipurpose use and stabilizing forest area at no less than 50 percent of total land area.