PPP GDP is gross domestic product converted to international dollars using purchasing power parity rates. An international dollar has the same purchasing power over GDP as the U.S. dollar has in the United States. GDP is the sum of gross value added by all resident producers in the country plus any product taxes and minus any subsidies not included in the value of the products. It is calculated without making deductions for depreciation of fabricated assets or for depletion and degradation of natural resources. Data are in constant 2017 international dollars. Statistical concept and methodology: For the concept and methodology of 2017 PPP, please refer to the International Comparison Program (ICP)’s website (https://www.worldbank.org/en/programs/icp).