Its Gini index, a measure of income inequality, dropped from 0.63 to 0.52 from 1989 to 2009.

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Among the BRIC nations, only Brazil is worse with a Gini index of around 0.57.

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The Census Bureau publishes the Gini Index, which is the official measure of income inequality.

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The Gini index ranges from 0, which represents perfect equality, to 1, for absolute inequality.

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The Gini index value for the United States in 2011 was 0.475, higher than it was in 2010 at 0.469.

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Contributing to the lower Gini index are lower unemployment, increasing minimum wage and Bolsa Familia (a government program that pays poor families to keep their children in school).

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In 2011, the U.S. Gini index rose to 04.77.

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This (as measured by the Gini index, also marked on the chart) has fallen sharply in Brazil since 1993, while it has soared in China and risen in India.

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The Gini index, which measures inequality, has declined from 64 in 1989 to 56 in 2009 where an index of 0 means perfect equality (the US Gini index was 45 in in 2009).

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The Gini index, which measures inequality between the social classes, went from a pre-tax level of 0.402 when Carter took the helm in January 1977, to a slightly worse 0.406, according to the U.S. Census Bureau.

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The Gini index measures inequality.

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