Year	% of total population
1960	39.9185576193971
1961	39.921571577012
1962	39.9889369411739
1963	40.2195943901483
1964	40.5797962258903
1965	40.9309821829653
1966	41.2578113116137
1967	41.5673582006422
1968	41.858385992635
1969	42.131377865172
1970	42.3809702858295
1971	42.6248464161192
1972	42.8633797869975
1973	43.0903501786596
1974	43.3039039796509
1975	43.510672777118
1976	43.7148317133762
1977	43.9077020756731
1978	44.1140281458203
1979	44.3404262127722
1980	44.5626197674545
1981	44.784870792066
1982	45.0078580221276
1983	45.21186177366
1984	45.4163826347395
1985	45.6518081515724
1986	45.9207290796943
1987	46.2026451344704
1988	46.4626484660949
1989	46.6849296311334
1990	46.868240499321
1991	47.0459465092817
1992	47.1947652537283
1993	47.2677139147821
1994	47.275542311086
1995	47.2447598039748
1996	47.2110076342052
1997	47.1597643941607
1998	47.0244743735483
1999	46.8138788789648
2000	46.5744943485119
2001	46.3144658821808
2002	46.0511013500425
2003	45.8174038307242
2004	45.6254796509023
2005	45.4788933540317
2006	45.4013750745962
2007	45.403661999662
2008	45.4678454248494
2009	45.5483399815138
2010	45.6206627289646
2011	45.6695124872072
2012	45.679479914741
2013	45.6753905238354
2014	45.6415871518974
2015	45.5535747251465
2016	45.4096905823134
2017	45.2153583370238
2018	44.9913015539906
2019	44.7384975466597
2020	44.4375212392763
2021	44.0909599017605
2022	43.7229891537187
2023	43.3259682123529