Qatar is being the top country by GNI per capita, PPP in the world. As of 2015, GNI per capita, PPP in Qatar was 138,480 current international $ that accounts for 4.02 % of the world's GNI per capita, PPP. The top 5 countries (others are Macau, Kuwait, Brunei Darussalam, and Singapore) account for 14.20 % of it. The world's total GNI per capita, PPP was estimated at 3.44 million current international $ in 2015.
GNI per capita based on purchasing power parity (PPP). PPP GNI is gross national income (GNI) converted to international dollars using purchasing power parity rates. An international dollar has the same purchasing power over GNI as a U.S. dollar has in the United States. GNI is the sum of value added by all resident producers plus any product taxes (less subsidies) not included in the valuation of output plus net receipts of primary income (compensation of employees and property income) from abroad.