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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	Romania	Congo - Brazzaville
Dec 31, 1999	56,940	22,414	2,886
Dec 31, 2000	56,966	22,262	2,999
Dec 31, 2001	57,004	22,106	3,113
Dec 31, 2002	57,114	21,931	3,181
Dec 31, 2003	57,423	21,828	3,274
Dec 31, 2004	57,852	21,704	3,400
Dec 31, 2005	58,191	21,571	3,543
Dec 31, 2006	58,424	21,443	3,702
Dec 31, 2007	58,781	21,129	3,859
Dec 31, 2008	59,236	20,779	3,989
Dec 31, 2009	59,580	20,607	4,146
Dec 31, 2010	59,844	20,485	4,324
Dec 31, 2011	60,052	20,385	4,468
Dec 31, 2012	60,216	20,296	4,581
Dec 31, 2013	60,337	20,224	4,667
Dec 31, 2014	60,346	20,151	4,757
Dec 31, 2015	60,255	20,055	4,851
Dec 31, 2016	60,140	19,938	4,951
Dec 31, 2017	60,027	19,823	5,055
Dec 31, 2018	59,902	19,713	5,164
Dec 31, 2019	59,754	19,622	5,279
Dec 31, 2020	59,464	19,496	5,400
Dec 31, 2021	59,158	19,351	5,527
Dec 31, 2022	58,966	19,266	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

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.

Romania

1862–1995: Axenciuc, V. (2012). Produsul intern brut al Romaniei, Vol. 1, Institutl de Economie Nationala, Bucarest
1915-1919 & 1949: Voinea, L., Cojocaru, A., Costache, B., Grigoraș, V., Lovin, H., Neagu, C., Orțan, D., & Tănase, A. (2019). One Hundred Years of Honesty: Recovering the Lost Memory of the Romanian Economy 1918-2018.

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