Year	% of total population
1960	50.4103204226402
1961	50.4087949059989
1962	50.451266183328
1963	50.6001143192597
1964	50.903634496883
1965	51.0251743886299
1966	50.9166055633835
1967	51.0266366169962
1968	51.3654094864335
1969	51.7735945314801
1970	52.2319162583789
1971	52.7103093843731
1972	53.1870362235496
1973	53.6489169241959
1974	54.071700036329
1975	54.4190415892384
1976	54.653422243198
1977	54.6009262728526
1978	54.3586392104942
1979	54.1360630834678
1980	53.9121493102977
1981	53.6901368945987
1982	53.4830714075997
1983	53.3002664129525
1984	53.1367530114087
1985	53.0739835603085
1986	53.2877895014619
1987	53.4632202804221
1988	53.4255562996148
1989	53.4230966534557
1990	53.4891664633126
1991	53.6191257820744
1992	53.7977258089423
1993	54.0182913828748
1994	54.286177106962
1995	54.5838754735136
1996	54.8762401875098
1997	55.2127583262212
1998	55.6083960881107
1999	56.0143623420015
2000	56.4151693910329
2001	56.7847627849938
2002	57.1324836354434
2003	57.4642629564031
2004	57.7744406119924
2005	58.0789957035011
2006	58.391424437722
2007	58.7663508052827
2008	59.1255146894996
2009	59.3949787200579
2010	59.6648765268222
2011	59.9438134561595
2012	60.2041010007213
2013	60.4115792247456
2014	60.5490772547808
2015	60.6878715594208
2016	60.8535630858559
2017	61.0350651450716
2018	61.236651035911
2019	61.4171756634931
2020	61.5615988642917
2021	61.6935818794545
2022	61.824387838542
2023	61.9443487850904