The GDPs of all nations around the world are from Summers, Robert and Heston, Alan, “A completely new List of International Comparisons of Authentic Product or service and Selling price Stage Estimates for one hundred thirty Nations, 1950–1985,” Overview of Cash flow and Wealth 34 (03 1988), pp. one–26CrossRefGoogle https://keeganwlzmx.blogofoto.com/61560723/the-smart-trick-of-mancur-88-that-no-one-is-discussing