Year	% of total population
1960	57.0326595799779
1961	56.8348385562378
1962	56.7954986386348
1963	56.9080683895261
1964	57.1502091221694
1965	57.4999801267121
1966	57.9360182355889
1967	58.4478613341419
1968	59.017263612175
1969	59.6156958159848
1970	60.2206433545333
1971	60.7891141980237
1972	61.281847817753
1973	61.7131855972384
1974	62.107214385389
1975	62.4783873522875
1976	62.8287527361974
1977	63.1507194534184
1978	63.4465344322655
1979	63.7176591595774
1980	63.9634870092793
1981	64.2356052361582
1982	64.5578154942979
1983	64.878918858491
1984	65.1528985802245
1985	65.3687758632666
1986	65.5451764152139
1987	65.6983911553656
1988	65.8331800340894
1989	65.9553944259217
1990	66.0548096643047
1991	66.1114258009389
1992	66.1979987748251
1993	66.2881976764503
1994	66.3408712162335
1995	66.3853667064568
1996	66.4465785366285
1997	66.5638427575431
1998	66.7169898233641
1999	66.8802457856193
2000	67.0111451554456
2001	67.0761296233404
2002	67.1010230158818
2003	67.0815203253254
2004	67.000081417068
2005	66.9341758371117
2006	66.9761835126355
2007	67.1207307858163
2008	67.2791034837161
2009	67.4387102293792
2010	67.6657253693879
2011	67.8696018284614
2012	67.9215165298819
2013	67.8649032132888
2014	67.6784994982615
2015	67.3928354258466
2016	67.1432192128553
2017	66.8899560114984
2018	66.5717799144673
2019	66.1909339526266
2020	65.8276203307381
2021	65.559278085747
2022	65.3546383450343
2023	65.1605905652893