Developments and Maintenance As part of an international attempt to modernize infrastructure, South Africa has faced increasing pressure to invest government funds into its water and electricity sectors. At current, these sectors are underfunded by approximately US$464 billion (This is according to the G20 GI Hub). Income levels South Africa has extreme differences in incomes and wealth. The good level of economic growth in the post-apartheid period has led to a measurable decline in income poverty, but inequality has increased. The high level of overall income inequality has further accentuated: the country's Gini coefficient increased by four percentage points, from 0.66 to 0.70, between 1993 and 2008, and income has become increasingly concentrated in the top decile. Inequality between urban and rural areas is changing: while rural poverty rates remain substantially higher than those in urban areas, urban poverty rates are rising and rural rates seem to be falling. While between-race inequality is slowly falling, an increase in intra-race inequality is preventing the aggregate measures from declining. Despite that, between-race inequality remains a central issue: real incomes have been rising for all groups, but many blacks in the country still live in poverty. At any poverty line, blacks are very much poorer than coloureds, who are very much poorer than Indians, who are poorer than whites. In 2002, according to one estimate, 62% of Black Africans, 29% of Coloureds, 11% of Asians, and 4% of Whites lived in poverty. The mean per-capita income has risen from R10,741 in 1993 to R24,409 in 2008, but these figures hide large differences in household welfare, both within and across population groups: the average Black income increased from R6,018 in 1993 to R9,718 in 2008; for Coloured households, the increase was from R7,498 to R25,269; for Whites, the increase was from R29,372 to R110,195. While mean income rose about 130% from 1993 to 2008, the median income rose just 15% over the same period, from R4,444 to R5,096, indicating that the increases are being driven by a small number of very large incomes, especially for Whites. In 2000 the average white household was earning six times more than the average black household. In 2004, 29.8% of all households had an income (at constant 2001 prices) of less than R9,600 per annum, while 10.3% of all households enjoyed an annual income (at constant 2001 prices) of more than R153,601 per annum. One study using calculations