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Population, long-run history by country

Annual, Persons, thousands

Source: Maddison Project Database 2023

Population, long-run history: latest observations by country
Date	Australia	United States	Congo - Brazzaville
Dec 31, 1999	18,692	279,040	2,886
Dec 31, 2000	18,907	282,162	2,999
Dec 31, 2001	19,151	284,969	3,113
Dec 31, 2002	19,371	287,625	3,181
Dec 31, 2003	19,595	290,108	3,274
Dec 31, 2004	19,805	292,805	3,400
Dec 31, 2005	20,048	295,517	3,543
Dec 31, 2006	20,320	298,380	3,702
Dec 31, 2007	20,694	301,231	3,859
Dec 31, 2008	21,113	304,094	3,989
Dec 31, 2009	21,553	306,772	4,146
Dec 31, 2010	21,891	309,327	4,324
Dec 31, 2011	22,197	311,583	4,468
Dec 31, 2012	22,588	313,878	4,581
Dec 31, 2013	22,980	316,060	4,667
Dec 31, 2014	23,326	318,386	4,757
Dec 31, 2015	23,664	320,739	4,851
Dec 31, 2016	24,036	323,072	4,951
Dec 31, 2017	24,445	325,122	5,055
Dec 31, 2018	24,823	326,838	5,164
Dec 31, 2019	25,204	328,330	5,279
Dec 31, 2020	25,529	331,512	5,400
Dec 31, 2021	25,574	332,032	5,527
Dec 31, 2022	25,826	333,288	5,655

Source: Bolt, J. and van Zanden, J.L. (2024), Maddison style estimates of the evolution of the world economy: A new 2023 update, Journal of Economic Surveys, 1-41, DOI 10.1111/joes.12618. Licensed under CC BY 4.0. The original sources are listed on each page.

All data sources

Original sources of these estimates

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

Australia

1820-1828: Butlin, N.G. 'Our 200 Years', Queesland Calendar, 1988
1828-1860: N.G. Butlin, "Contours of the Australian Economy 1788-1860", Australian Economic Review, Sept. 1986, pp. 112-13;
1861-1938/9: N.G. Butlin, Australian Domestic Product, Investment and Foreign Borrowing 1861-1938/9, Cambridge, 1962,pp.460-1; amdended as indicated in N.G. Butlin, Investment in Australian Economic Development 1861-19000, Cambridge, 1964, p. 453 and with revised deflator shown in M.W. Butlin, A Preliminary Annual Databae 1900/1901 to 1973/1974, Discussion Paper 7701, Reserve Bank of Australia, 1977, p. 41
1938/9-1950: from expenditure aggregates in 1966/7 prices in M.W. Butlin, RS/FLW/, p.85.

United States

1650 - 1790: McCusker, John J., ‘Colonial Statistics’, Historical Statistics of the United States: Earliest Time to the Present, in S. B. Carter, S. S. Gartner, M. R. Haineset al. New York, Cambridge University Press. V-671.
1790 - 1870: Sutch, R. (2006). National Income and Product. Historical Statistics of the United States: Earliest Time to the Present, in S. B. Carter, S. S. Gartner, M. R. Haineset al. New York, Cambridge University Press III-23-25.
1800-1830: Prados de la Escosura, L. (2009). “Lost Decades? Economic Performance in Post-Independence Latin America,” Journal of Latin America Studies 41: 279–307. (updated data)
1820-1950: GDP movement from Maddison (1995a), amended for 1820–70 to include income of the indigenous population (taken to be $400 per capita in 1820 and 1870).

No separate list is published for Congo - Brazzaville; the database as a whole is cited above.