Rwanda is a country of few natural resources, and the economy is based mostly on subsistence agriculture by local farmers using simple tools. An estimated 90% of the working population farms, and agriculture constituted an estimated 32.5% of GDP in 2014. Farming techniques are basic, with small plots of land and steep slopes. Since the mid-1980s, farm sizes and food production have been decreasing, due in part to the resettlement of displaced people. Despite Rwanda's fertile ecosystem, food production often does not keep pace with population growth, and food imports are required,But in recent years, with the growth of agriculture, the situation has improved.