The GDPs of all nations around the world are from Summers, Robert and Heston, Alan, “A brand new Set of Worldwide Comparisons of Actual Solution and Value Degree Estimates for one hundred thirty International locations, 1950–1985,” Evaluation of Revenue and Prosperity 34 (03 1988), pp. 1–26CrossRefGoogle Scholar. These estimates https://herbertw470ekq0.p2blogs.com/profile