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The Gini coefficient by countries (1989-2009)

The Gini coefficient (also known as the Gini index or Gini ratio) is a measure of income (in-)equality. It was developed by the Italian statistician Corrado Gini in 1912.

Definition

The Gini coefficient is usually a number between 0 and 1,00 (although it can also be 0 and 100 etc.): 0 (best score) means that in a country everyone owns the same like anyone other. 1,00 (worst score) means that one person owns everything but the rest nothing.

Statistics

This table is about the world Gini coefficient (not by single countries).

Income Gini coefficient
World, 1820-2005
Year World Gini index[១][២][៣]
1820 0.43
1850 0.53
1870 0.56
1913 0.61
1929 0.62
1950 0.64
1960 0.64
1980 0.66
2002 0.71
2005 0.68

This table shows the income Gini coefficient of the United States from 1947 to 2009.

Income Gini coefficient
United States, 1947-2009
Year pre-tax Gini
1947 0.413
1967 0.397
1968 0.386
1970 0.394
1980 0.403
1990 0.428
2000 0.462
2005 0.469
2006 0.470
2007 0.463
2008 0.467
2009 0.468

References


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