Global Income Inequality DatabaseThis file contains data on Gini coefficients, cumulative quintile shares, explanations regarding the basis on which the Gini coefficient was computed, and the source of the information. There are two data-sets, one containing the "high quality" sample and the other one including all the information (of lower quality) that had been collected.

Field definitions and abbreviations used are as follows:
Quality, Country and country code, year, gini coefficient, cumulative quintile shares, whether the coefficient is based on income or consumption, whether -in cases where income is used- this is gross or net of taxes, the populatoin covered by the data (national for all the coefficients in the high quality set), and the sources of the data. The data distributes unevenly for 138 countries and over the period of 1890 - 1996.