Year	% of total population
1960	54.372491140289
1961	52.8459486794201
1962	51.6745795547532
1963	50.8740745390032
1964	50.3390389499027
1965	50.0333725315024
1966	49.8922939024101
1967	49.8986610293918
1968	50.0676006869048
1969	50.3900859274898
1970	50.8610003802543
1971	51.4714124673484
1972	52.2197666785546
1973	53.0998688267632
1974	54.0849988531804
1975	55.1522043202441
1976	56.3547837662967
1977	57.6020785659334
1978	58.7225438888671
1979	59.6235077214781
1980	60.3413613800717
1981	60.9881786456103
1982	61.4656410743656
1983	61.8108184479952
1984	62.0233474632573
1985	62.1075032578064
1986	62.1015757098977
1987	61.9786377780597
1988	61.7786560285002
1989	61.3966737355496
1990	61.0410017130157
1991	60.863100232454
1992	60.7006323676907
1993	60.5591692724661
1994	60.5758756575066
1995	60.7904283380211
1996	61.1456779108935
1997	61.6138888432295
1998	62.1763042112856
1999	62.8041870778803
2000	63.4873815326524
2001	64.2272787699334
2002	64.9819275316774
2003	65.7400159046191
2004	66.5149417425846
2005	67.3067157996434
2006	68.0838847822355
2007	68.8225235348983
2008	69.5164647783658
2009	70.1002332551284
2010	70.5191750424439
2011	70.7487845007613
2012	70.7681642105867
2013	70.6256298768571
2014	70.3873702823598
2015	70.1009836284962
2016	69.8077974805759
2017	69.5912910076456
2018	69.4628324598968
2019	69.3453022857094
2020	69.3043797680709
2021	69.3584606678644
2022	69.4120885794019
2023	69.4628884871447