<Tr> <Td_colspan="2"> Main data source: CIA World Fact Book All values, unless otherwise stated, are in US dollars . </Td> </Tr> <P> The Economy of Angola is one of the fastest - growing in the world, with reported annual average GDP growth of 11.1 percent from 2001 to 2010 . It is still recovering from 27 years of the civil war that plagued the country from its independence in 1975 to 2002 . Despite extensive oil and gas resources, diamonds, hydroelectric potential, and rich agricultural land, Angola remains poor, and a third of the population relies on subsistence agriculture . Since 2002, when the 27 - year civil war ended, the nation has worked to repair and improve ravaged infrastructure and weakened political and social institutions . High international oil prices and rising oil production have contributed to the very strong economic growth since 1998, but corruption and public - sector mismanagement remain, particularly in the oil sector, which accounts for over 50 percent of GDP, over 90 percent of export revenue, and over 80 percent of government revenue . </P> <P> The Portuguese explorer Diogo Cão reached the Angolan coast in 1484, after which Portugal began to found trading posts and forts along the shore . Paulo Dias de Novais founded Sāo Paulo de Loanda (Luanda) in 1575 . São Felipe de Benguella (Benguela) followed in 1587 . </P> <P> The principal early trade was in slaves . Portuguese merchants purchased the slaves from the local Imbangala and Mbundu peoples, notable slave hunters, and sold them to the sugarcane plantations in Brazil . Brazilian ships were frequent visitors to Luanda and Benguela and Angola functioned as a kind of colony of Brazil, with Brazilian Jesuits active in its religious and educational centers . </P>

How much money does angola make from oil