Year	% of total population
1960	49.7653300683604
1961	49.7900657243245
1962	49.8701763287199
1963	49.9871427292984
1964	50.1757415193733
1965	50.3395449990405
1966	50.5002508510277
1967	50.7679944200998
1968	51.1108168520828
1969	51.5199172070935
1970	52.0114814544566
1971	52.571145512217
1972	53.2026263077927
1973	53.8996382195232
1974	54.615695678585
1975	55.2816103382311
1976	55.8589481543862
1977	56.3699650752809
1978	56.829861940107
1979	57.2125866052645
1980	57.504287665718
1981	57.7252773867369
1982	57.876116652572
1983	57.9744893619169
1984	58.0474442025386
1985	58.0854506289684
1986	58.0552273423483
1987	58.023153828013
1988	58.0256289493308
1989	58.0327654574067
1990	58.100982791538
1991	58.2450766533475
1992	58.4617818832738
1993	58.7649368314816
1994	59.1456031744928
1995	59.5817460738205
1996	60.060499272791
1997	60.5818994446737
1998	61.1216939667485
1999	61.6449169714417
2000	62.1284347246905
2001	62.5437407882851
2002	62.9108539148821
2003	63.2465363439941
2004	63.5425169999348
2005	63.8219798645253
2006	64.0773290845821
2007	64.2946483908345
2008	64.4692580435259
2009	64.608310012675
2010	64.7356102917741
2011	64.8513878667415
2012	64.9342688014717
2013	64.9662325264683
2014	64.9658678841365
2015	64.9880069777584
2016	65.0401635069052
2017	65.0929769096052
2018	65.1529495231753
2019	65.2166741338397
2020	65.2739721562501
2021	65.3688935707453
2022	65.4928229253382
2023	65.6106444476601