Population of Eastern Balkans

Romania
1844	3.6	1910	6.9	1941	13.6	1990	23.2
1861	3.9	1915	7.8	1946	15.8	2000	22.4
1870	4.3	1921	15.6	1950	16.3	2010	20.2
1880	4.5	1930	17.9	1960	18.4	2020	19.3
1890	5.3	1939	19.9	1970	20.3
1900	6.0	1940	15.9	1980	22.2
Sources: 1861-1990: "International Historical Statistics 1750-1993" by B.R. Mitchell (1998); 2000-2020: Wikipedia Bulgaria (1881b-1940: within the borders of 1939)
1881a	2.0	1910	4.3	1950	7.3	1990	9.0
1881b	2.9	1920	4.8	1960	7.9	2000	8.2
1890	3.2	1930	5.7	1970	8.5	2010	7.4
1900	3.7	1940	6.3	1980	8.9	2020	6.9
Sources: 1881-1990: "International Historical Statistics 1750-1993" by B.R. Mitchell (1998); 2000-2020: Wikipedia Greece
1821	0.9	1880	1.7	1940	7.3	2000	10.9
1828	0.8	1890	2.2	1950	7.6	2010	11.1
1838	0.8	1896	2.4	1960	8.3	2020	10.7
1850	1.0	1910	2.6	1970	8.8
1860	1.1	1920	5.0	1980	9.6
1870	1.5	1930	6.4	1990	10.2
Sources: 1821-1990: "International Historical Statistics 1750-1993" by B.R. Mitchell (1998); 2000-2020: Wikipedia Turkey
1500	6.0	1926	13.7	1960	27.8	2000	67.8
1600	16.0	1930	14.9	1970	35.6	2010	73.7
1800	26.0	1940	17.8	1980	44.7	2020	83.6
1910	23.8	1950	20.9	1990	56.5