World Inequality Database
The World Inequality Database aims to provide open and convenient access to the most extensive available database on the historical evolution of the world distribution of income and wealth, both within countries and between countries.
Information taken from this site should be cited as Alvaredo, Facundo, Anthony B. Atkinson, Thomas Piketty and Emmanuel Saez, The World Top Incomes Database, http://g-mond.parisschoolofeconomics.eu/topincomes, dd/mm/yyyy. We advise making explicit reference to the date when the database was consulted, as statistics are subject to revisions. The specific country chapters and papers should also be cited.