Year	% of total population
1960	46.6288729632403
1961	46.1697396298436
1962	45.8411951939896
1963	45.5938762156186
1964	45.4801867778598
1965	45.4970216951746
1966	45.5288707204906
1967	45.5637727532792
1968	45.6147496044738
1969	45.7143298395898
1970	45.8718857595547
1971	46.0867210303012
1972	46.379750601185
1973	46.7654979911601
1974	47.2547753068192
1975	47.852559937235
1976	48.494398762284
1977	49.1137356752197
1978	49.6731318627013
1979	50.1602241735006
1980	50.6324461874125
1981	51.3030256815524
1982	52.1213873097588
1983	52.8513730352649
1984	53.4739122356215
1985	54.0009287185938
1986	54.4609832297914
1987	54.8749446410278
1988	55.2609624761879
1989	55.6452797599704
1990	56.0511167907545
1991	56.5521369037063
1992	57.0929549599678
1993	57.5914663662527
1994	58.07527414903
1995	58.5671869252194
1996	59.1085873279056
1997	59.6903125314479
1998	60.279684139991
1999	60.8467952401212
2000	61.3579352004393
2001	61.8055983315881
2002	62.2131432928307
2003	62.6109559005552
2004	63.0215571786959
2005	63.4428899747864
2006	63.91208554518
2007	64.4300873457013
2008	64.930585457166
2009	65.3849480378188
2010	65.7878004711479
2011	66.1245141556082
2012	66.3795416485479
2013	66.5686365751512
2014	66.7132782101167
2015	66.8202137450461
2016	66.8915890055444
2017	66.9507382861907
2018	66.9957874440186
2019	67.0173983902557
2020	67.0465677490264
2021	67.1155541923858
2022	67.2209528848698
2023	67.3249854144467