Gini income inequality index, 2015 - Country rankings:
The average for 2015 based on 74 countries was 36.87 index points.The highest value was in Namibia: 59.1 index points and the lowest value was in Slovenia: 25.4 index points. The indicator is available from 1979 to 2017. Below is a chart for all countries where data are available.
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.