Year	% of total population
1960	47.2065222027897
1961	46.8752628922352
1962	46.6533752550702
1963	46.4681444017237
1964	46.3068443752369
1965	46.1685297171828
1966	46.0711101203745
1967	46.0412320096184
1968	46.123676891471
1969	46.3369537762061
1970	46.9461708200903
1971	47.9946212005886
1972	49.1180917184613
1973	50.1631992154179
1974	51.1055742680345
1975	51.9266196675758
1976	52.6025387345591
1977	53.1421126665525
1978	53.5609353880838
1979	53.8585917977363
1980	54.1505206273889
1981	54.7213601970143
1982	55.4780933241484
1983	56.0852138750108
1984	56.5439980726375
1985	56.8102728285078
1986	56.8042381532911
1987	56.6091939740652
1988	56.4065980826513
1989	56.2585664758526
1990	56.1607115813705
1991	56.2721786723872
1992	56.478622327791
1993	56.5849099077056
1994	56.6310310737201
1995	56.7465885066308
1996	56.904683558188
1997	57.1040801148287
1998	57.4439736346516
1999	57.8688209991247
2000	58.3569141410381
2001	59.0644412635324
2002	60.0396374421376
2003	61.0874563178223
2004	62.1079928595235
2005	63.0755486220392
2006	63.9456517821747
2007	64.7006699515326
2008	65.3338193521429
2009	65.8484143417852
2010	66.2510193881041
2011	66.502201569815
2012	66.638628275639
2013	66.7372129514428
2014	66.8020089427621
2015	66.8447085422279
2016	66.7818381874865
2017	66.6297277963621
2018	66.4714621054187
2019	66.3075939001088
2020	66.1806684295222
2021	66.0845839017735
2022	65.9683109118087
2023	65.8422059936521