Year	% of total population
1960	61.97486384012461
1961	61.51571557914693
1962	61.36454293342897
1963	61.34927673939804
1964	61.488459210386
1965	61.703151570407336
1966	61.910246510278604
1967	62.121471313671776
1968	62.32870571108998
1969	62.59099989736158
1970	62.92315131670213
1971	63.22128678266256
1972	63.45438133032139
1973	63.68324641982619
1974	63.87870905250123
1975	64.04398258804125
1976	64.18156495023982
1977	64.26245248012083
1978	64.32797922639303
1979	64.34971102272945
1980	64.35974493552429
1981	64.4374932774078
1982	64.56062848953606
1983	64.66349180110537
1984	64.69329265652011
1985	64.70747350167161
1986	64.71562215704165
1987	64.69416282096053
1988	64.64384508547606
1989	64.57824005709014
1990	64.52745028958725
1991	64.49152083511915
1992	64.44968053969642
1993	64.41901150306772
1994	64.45395048488922
1995	64.57178305331121
1996	64.78516660743871
1997	65.10302693698497
1998	65.55775632040606
1999	66.11038128439863
2000	66.63588769946354
2001	67.12259600546514
2002	67.55206185026715
2003	67.87594176365445
2004	68.1189093610016
2005	68.35458427610105
2006	68.58408208049852
2007	68.82796232524511
2008	69.10014816133543
2009	69.34244358068628
2010	69.53313371790355
2011	69.56452606470162
2012	69.40210000947872
2013	69.15035977495243
2014	68.8012377929563
2015	68.39166928420718
2016	67.99179712832327
2017	67.60255498408287
2018	67.21713734404487
2019	66.83880391272292
2020	66.51385875329366
2021	66.27642584101247
2022	66.07469378586957
2023	65.87715896963223