Year	% of total population
1960	43.6858814192069
1961	43.9720544356306
1962	44.5986766398159
1963	45.1815801457195
1964	45.713601532567
1965	46.203819880106
1966	46.6672178814062
1967	47.1032026534718
1968	47.50933247702
1969	47.8930830013542
1970	48.1729244808786
1971	48.349026834625
1972	48.5124018061483
1973	48.6807643806383
1974	48.8353585385264
1975	48.9591687297325
1976	49.0599241581326
1977	49.146723662499
1978	49.2213384560593
1979	49.3090710083459
1980	49.4321571854747
1981	49.6027024301704
1982	49.7597368499272
1983	49.8762786166585
1984	49.9880379341034
1985	50.0745729642519
1986	50.1266450085348
1987	50.1630678254637
1988	50.1951743470174
1989	50.2328749627485
1990	50.2829412595664
1991	50.3071073413279
1992	50.2992486947663
1993	50.2863116506218
1994	50.2701544395635
1995	50.2543640148185
1996	50.2355773491271
1997	50.2150287673621
1998	50.1974390156664
1999	50.1798206025048
2000	50.1649108646339
2001	50.1552051853574
2002	50.1431517408453
2003	50.1300711489185
2004	50.1214354109463
2005	50.1181345868382
2006	50.1179665107859
2007	50.1186375813241
2008	50.1160892853038
2009	50.1145243869577
2010	50.1163952607364
2011	50.1042764077315
2012	50.0889829616057
2013	50.0823196065174
2014	50.0782290363904
2015	50.0750780612955
2016	50.0728136361859
2017	50.0740256494068
2018	50.0780717692482
2019	50.0822464223971
2020	50.09490443238
2021	50.1113815344207
2022	50.12402146187
2023	50.1406045131461