USA: Gini inequality index

(measure: index points; Source: The World Bank)
* indicates monthly or quarterly data series

USA: Gini income inequality index

: For that indicator, we provide data for the USA from 1979 to 2016. The average value for the USA during that period was 39.65 index points with a minimum of 34.6 index points in 1979 and a maximum of 41.5 index points in 2016. The latest value from 2016 is 41.5 index points. For comparison, the world average in 2016 based on 39 countries is 39.72 index points. See the global rankings for that indicator or use the country comparator to compare trends over time.
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Definition: Gini index measures the extent to which the distribution of income (or, in some cases, consumption expenditure) among individuals or households within an economy deviates from a perfectly equal distribution. A Lorenz curve plots the cumulative percentages of total income received against the cumulative number of recipients, starting with the poorest individual or household. The Gini index measures the area between the Lorenz curve and a hypothetical line of absolute equality, expressed as a percentage of the maximum area under the line. Thus a Gini index of 0 represents perfect equality, while an index of 100 implies perfect inequality.
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