Year	% of total population
1960	55.797013995867076
1961	55.91797191189522
1962	55.8215190355862
1963	55.40452882438
1964	55.047589496484136
1965	54.8893530688215
1966	54.8144302079554
1967	54.886321410943786
1968	54.9799016325187
1969	55.03132205360681
1970	55.14389730238487
1971	55.25482300234973
1972	55.444866755875054
1973	55.63670920616856
1974	55.68235470563738
1975	55.69881698902971
1976	55.75009327052173
1977	56.08992017535175
1978	56.87122305981163
1979	57.686944060406866
1980	58.377249305677
1981	59.0246081733143
1982	59.55048243259909
1983	60.12806688323462
1984	60.790837405091104
1985	61.39312416183892
1986	61.91309992225651
1987	62.308265172829614
1988	62.64431839816096
1989	62.906592432267104
1990	63.051719830151896
1991	63.198296967834004
1992	63.37630118012581
1993	63.53830402464258
1994	63.758871380538224
1995	64.05526098588331
1996	64.41755788015175
1997	64.87006270934477
1998	65.3136565756428
1999	65.72963983170577
2000	66.17784368397446
2001	66.67226246362334
2002	67.22800391561681
2003	67.78017589361528
2004	68.31784452170731
2005	68.86318653180662
2006	69.29565695007093
2007	69.57594136820376
2008	69.78145492576033
2009	69.92410007097568
2010	70.01875315289205
2011	70.04997755922265
2012	69.9938962723288
2013	69.87673456082236
2014	69.7115609471298
2015	69.51534385581924
2016	69.29289084134035
2017	69.00551609947576
2018	68.72590699859876
2019	68.50263444128551
2020	68.3342341553862
2021	68.25866153848278
2022	68.190976693396
2023	68.14964528241643