Year	% of total population
1960	55.468949277178275
1961	55.416705918913756
1962	55.2483138801823
1963	54.906638803133006
1964	54.623181293178504
1965	54.486644807497974
1966	54.41030591078716
1967	54.42447931443237
1968	54.46296345611437
1969	54.488206992603246
1970	54.55588712384717
1971	54.623678306138125
1972	54.73694940898731
1973	54.85898719578056
1974	54.9068714274921
1975	54.946171830486904
1976	55.004325057537734
1977	55.22009342233929
1978	55.677661191810316
1979	56.14683708120863
1980	56.54436235749132
1981	56.91416533620523
1982	57.214531856143715
1983	57.53953893269845
1984	57.90275780279624
1985	58.23412008013806
1986	58.52851923391342
1987	58.76527593105662
1988	58.981495777564035
1989	59.163619537990286
1990	59.284432398361346
1991	59.415966653511404
1992	59.5587740751327
1993	59.69443521483203
1994	59.88067003654787
1995	60.12008990308647
1996	60.39649345209229
1997	60.725253713173736
1998	61.06218199927505
1999	61.39066716107176
2000	61.7323954058636
2001	62.09200930375341
2002	62.46870580462899
2003	62.83834300310668
2004	63.20647829939506
2005	63.57965608858961
2006	63.898315623593874
2007	64.14284850755472
2008	64.34730273550394
2009	64.51885703735987
2010	64.66582817702187
2011	64.78028348151375
2012	64.84755016307572
2013	64.87930680909263
2014	64.88604619106138
2015	64.87679830302058
2016	64.86212403478957
2017	64.82659892731266
2018	64.79194798303018
2019	64.77895164918264
2020	64.79585940450299
2021	64.86043385552777
2022	64.92490434640226
2023	64.99356704870982