Población, historia de largo plazo: comparar países

GDP pc: 2008 - 2022: Total Economy Database the Conference Board for all countries included in TED. Otherwise UN national accounts statistics

Canadá

• 1820-1850: Maddison, A. Monitoring the World Economy, 1995
• 1851-70: O.J. Firestone, "Canada's Changing Economy in the Second Half of the 19th Century", NBER, New York, 1957, processed, amended for 1820–70 to include income of the indigenous population (taken to be $400 per capita in 1820 and 1870)
• 1870-1926: M.C. Urquart and Associates, ed., Gross National Product, Canada 1870-1926: The Derivation of the Estimates, McGill Queen's University Press, Montreal, 1993, pp. 11-12 and 24-5,
• 1926-1950: Statistics Canada, National Income and Expenditure Accounts, vol. 1, The Annual Estimates 1926-1974, Ottawa, 1975, p. 323. 1960 onwards from OECD, National Accounts.

España

• 1: Scheidel, W. and Friesen, S. J., ‘The size of the economy and the distribution of income in the Roman Empire’, Journal of Roman Studies, 99 (2009), pp. 61–91
• 1270-1850: Álvarez-Nogal, C. and L. Prados de la Escosura (2013). "The Rise and Fall of Spain (1270-1850)," Economic History Review, 66, 1, 1-37, using their annual benchmarks
• 1850–2011: Prados de la Escosura, L. (2017), Spanish Economic Growth, 1850-2015 (London: Palgrave Macmillan)

Singapur

• 1900–1959: Sugimoto, I. (2011), Economic growth of Singapore in the twentieth century: historical GDP estimates and empirical investigations, Economic Growth Centre Research Monograph ser., 2, http://www.worldscibooks.com/economics/7858.html (accessed on 30 Jan. 2013).