Tonga: Gini inequality index

The latest value from 2021 is 27.1 index points, a decline from 33.5 index points in 2015. In comparison, the world average is 34.92 index points, based on data from 80 countries. Historically, the average for Tonga from 2000 to 2021 is 33.95 index points. The minimum value, 27.1 index points, was reached in 2021 while the maximum of 37.7 index points was recorded in 2000. See the global rankings for that indicator or use the country comparator to compare trends over time.

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.