Revenue from canal tolls continues to represent a significant portion of Panama's GDP, although commerce, banking, and tourism are major and growing sectors. It is regarded as having a high-income economy. In 2019 Panama ranked 57th in the world in terms of the Human Development Index. In 2018, Panama was ranked the seventh-most competitive economy in Latin America, according to the World Economic Forum's Global Competitiveness Index. Covering around 40 percent of its land area, Panama's jungles are home to an abundance of tropical plants and animals – some of them found nowhere else on earth. Panama is a founding member of the United Nations and other international organizations such as OAS, LAIA, G77, WHO, and NAM.