Year	% of total population
1960	60.788581717805
1961	60.6225776710216
1962	60.8284601840329
1963	61.1845600077639
1964	61.5947960856344
1965	62.0313164701309
1966	62.553555276854
1967	63.131718423454
1968	63.7161440203243
1969	64.2976180300962
1970	64.9290290599592
1971	65.5019107101616
1972	65.9073021890818
1973	66.224503669724
1974	66.4098574086423
1975	66.4328853327454
1976	66.3341148767097
1977	66.1488797901219
1978	65.9781162685915
1979	65.7839551872229
1980	65.6246726447858
1981	65.5732086505755
1982	65.5119655768257
1983	65.4351476998508
1984	65.2879900577493
1985	65.0911097116114
1986	64.9618814216147
1987	64.8887523429858
1988	64.847338717927
1989	64.8826618130524
1990	64.9797686172995
1991	65.1348403348026
1992	65.3518608232375
1993	65.5864063162016
1994	65.8404971781575
1995	66.1282260789825
1996	66.453426655606
1997	66.8544559940605
1998	67.36855888487
1999	67.9205863252718
2000	68.4997929199369
2001	69.015930584756
2002	69.4112292169969
2003	69.7955772390276
2004	70.1526622859411
2005	70.4642451606652
2006	70.7556152065549
2007	71.018196973208
2008	71.2070949000247
2009	71.3134123027934
2010	71.3655273199693
2011	71.2429533200036
2012	70.9104339090221
2013	70.4816679672609
2014	70.0028763508044
2015	69.4886650754779
2016	68.898275431953
2017	68.2286994782525
2018	67.5389844098963
2019	66.8746189788791
2020	66.2779564153475
2021	65.7944426901566
2022	66.2949232026664
2023	66.5255571960437