NOTE: Countries are ranked according to the Gini index (or coefficient), a measure of income inequality within a country. A country's Gini rating is between 0 and 100, with 0 indicating perfect equality and 100 indicating absolute inequality. (The U.S. rates 40.8 on the Gini index—the poorest 20% of its population receives 5.2% of incomethe richest 20% receives 46.4%.)
Source: World Development Index 2002, The World Bank.