Global Entrepreneurship Index report. However, a recent research in the UK-based political science journal, Review of African Political Economy, indicates that economic growth may be slower than what official figures suggest. Researchers stated that average consumption per household closely followed growth in GDP per capita from 2000 to 2005, but diverged afterwards when average consumption per household stagnated despite huge improvements in GDP per capita from 2005 to 2013. Agriculture and primary resources Rwanda produced in 2019: 2.6 million tons of banana; 1.2 million tonnes of sweet potato; 1.1 million tons of cassava; 973 thousand tons of potato; 484 thousand tons of beans; 421 thousand tons of maize; 256 thousand tons of pumpkin; 171 thousand tons of taro; 159 thousand tons of sorghum; 131 thousand tons of rice; 114 thousand tons of sugarcane; 105 thousand tons of tomato; 36 thousand tons of pineapple; 31 thousand tons of tea; 29 thousand tons of coffee; 5.4 thousand tons of tobacco; In addition to other productions of other agricultural products. Products such as bananas, pineapples, tea, coffee, and tobacco are high-value, export-oriented products. In 2019 agriculture accounted for 29% of the economy of Rwanda. Rwanda has long relied on coffee as a cash crop. The crash of coffee prices in 1989 caused a great decrease in purchasing power, and increased domestic tensions. Rwanda's economy suffered heavily during the 1994 Genocide, with widespread loss of life, failure to maintain the infrastructure, looting, and neglect of important cash crops. This caused a large drop in GDP and destroyed the country's ability to attract private and external investment. The economy has since strengthened, with per-capita GDP (PPP) estimated at $2,225 in 2018, compared with $416 in 1994. Major export markets include China, Germany, and the United States. The economy is managed by the central National Bank of Rwanda and the currency is the Rwandan franc; in June 2010, the exchange rate was 588 francs to the United States dollar. Rwanda joined the East African Community in 2007 and there were plans for a common East African shilling, which it had been hoped would be in place by 2015, but have not yet reached fruition (2020). 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 comprised an estimated 42.0% of GDP in 2010.