Year	% of total population
1960	51.0676777269601
1961	50.9381682541387
1962	50.8123197431021
1963	50.6822232552447
1964	50.5745887947996
1965	50.5006989294404
1966	50.4045387694723
1967	50.2796002278655
1968	50.1528642553215
1969	50.043161091126
1970	50.0861542542462
1971	50.2709539618286
1972	50.4882956229008
1973	50.7501209955485
1974	51.0419425062292
1975	51.348690250068
1976	51.6646169762841
1977	51.998490849542
1978	52.3466923669085
1979	52.6865477543009
1980	52.9990073169347
1981	53.2209422217025
1982	53.4050275831843
1983	53.6207005190866
1984	53.8638130123275
1985	54.1237090676969
1986	54.3907370027914
1987	54.664489264288
1988	54.8317788397333
1989	54.8728424867075
1990	54.9100933656209
1991	54.9591879467588
1992	55.0189920023673
1993	55.309522113974
1994	55.8042033093754
1995	56.2914657304192
1996	56.7571040855581
1997	57.1728387074469
1998	57.5143254151492
1999	57.7783087761139
2000	57.9733814753489
2001	58.1286953530296
2002	58.2914939010443
2003	58.4805723920221
2004	58.6828804261608
2005	58.890150198325
2006	59.1011239492804
2007	59.4625099952334
2008	60.008950084697
2009	60.6142069998666
2010	61.2455000049476
2011	61.8810875738929
2012	62.5193202266604
2013	63.156713308278
2014	63.7591690767404
2015	64.2837597932681
2016	64.7259823598394
2017	65.077339112919
2018	65.3364678552836
2019	65.5576789782901
2020	65.812244318087
2021	66.0878571878241
2022	66.3633736675382
2023	66.6085671630183