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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	Italy	Congo - Kinshasa	Switzerland
Dec 31, 1999	56,940	51,181	7,258
Dec 31, 2000	56,966	52,782	7,296
Dec 31, 2001	57,004	54,453	7,332
Dec 31, 2002	57,114	56,170	7,384
Dec 31, 2003	57,423	57,860	7,438
Dec 31, 2004	57,852	59,599	7,488
Dec 31, 2005	58,191	61,474	7,532
Dec 31, 2006	58,424	63,479	7,579
Dec 31, 2007	58,781	65,590	7,647
Dec 31, 2008	59,236	67,800	7,738
Dec 31, 2009	59,580	70,114	7,825
Dec 31, 2010	59,844	72,550	7,884
Dec 31, 2011	60,052	75,138	7,959
Dec 31, 2012	60,216	77,792	8,044
Dec 31, 2013	60,337	80,534	8,137
Dec 31, 2014	60,346	83,368	8,237
Dec 31, 2015	60,255	86,229	8,332
Dec 31, 2016	60,140	89,193	8,423
Dec 31, 2017	60,027	92,209	8,502
Dec 31, 2018	59,902	95,232	8,565
Dec 31, 2019	59,754	98,320	8,626
Dec 31, 2020	59,464	101,499	8,689
Dec 31, 2021	59,158	104,767	8,756
Dec 31, 2022	58,966	108,171	8,834

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

Italy

1451-1861: Chilosi, D., & Ciccarelli, C. (2023). Italy in the Great Divergence: What Can We Learn from Engel’s Law (SSRN Scholarly Paper 4514091).
1861-1871 (North Italy): Malanima, P. (2010), “The long decline of a leading economy: GDP in central and northern Italy, 1300–1913” European Review of Economic History 15 (2): 169–219.
1871-1990: Baffigi, A. (2011).”Italian National Accounts, 1861-2011”, Banca d’Italia Economic History Working Papers 18.

Switzerland

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
1850-2011: Stohr, Christian (2016), Trading Gains: new estimates of Swiss GDP, 1851-2008. Economic History Working Papers, 245/2016. London School of Economics and Political Science, Economic History Department, London, UK

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