Year	% of total population
1960	49.5118667554739
1961	49.5867281057661
1962	49.6545101206278
1963	49.7157960026291
1964	49.7693213570291
1965	49.8165252629296
1966	49.8597369464999
1967	49.8974878804314
1968	49.9287296976478
1969	49.955606781252
1970	49.9788979973563
1971	49.9996190265432
1972	50.0195132892228
1973	50.0385468071484
1974	50.0598416330682
1975	50.0861253226748
1976	50.120093883718
1977	50.1590343183183
1978	50.1981720454243
1979	50.2411863140131
1980	50.2897232500705
1981	50.3399362545834
1982	50.3867485914521
1983	50.432648847363
1984	50.4815426829672
1985	50.5311545393971
1986	50.581889251421
1987	50.6337672227977
1988	50.678485406787
1989	50.7133823692643
1990	50.7427881182215
1991	50.7675388017995
1992	50.7864233276876
1993	50.7961637430131
1994	50.7987405102452
1995	50.7965708866318
1996	50.7865843598229
1997	50.7729638257422
1998	50.7579175344288
1999	50.7387112101124
2000	50.7190502207143
2001	50.7018776264503
2002	50.6839326675049
2003	50.6637288054982
2004	50.6429516375565
2005	50.6201106801126
2006	50.5961803416443
2007	50.5749062536365
2008	50.5567443284507
2009	50.5404875728902
2010	50.5132262028302
2011	50.474057505152
2012	50.4348727480886
2013	50.3956034910743
2014	50.3569754545041
2015	50.3207131866043
2016	50.2832513115257
2017	50.2479463566959
2018	50.2188439331103
2019	50.1902957032937
2020	50.1654983523245
2021	50.1446900520547
2022	50.1223403625612
2023	50.0976399855251