South Africa has a mixed economy, the second largest in Africa after Nigeria. It also has a relatively high gross domestic product (GDP) per capita compared to other countries in sub-Saharan Africa (US$11,750 at purchasing power parity as of 2012). Despite this, South Africa is still burdened by a relatively high rate of poverty and unemployment, and is also ranked in the top ten countries in the world for income inequality, measured by the Gini coefficient. In 2015, 71 percent of net wealth are held by 10 percent richest of the population, whereas 60 percent of the poorest held only 7 percent of the net wealth and the Gini coefficient was 0.63, whereas in 1996 was 0.61.