Year	% of total population
1960	55.1227074235808
1961	55.0521561189858
1962	54.987134317723
1963	54.9636420523298
1964	54.8930175920222
1965	54.7601295141837
1966	54.5539853360516
1967	54.2235314196856
1968	53.8377388482099
1969	53.570136414552
1970	53.7962970716553
1971	54.3268748525899
1972	54.7603756181233
1973	55.1750592830241
1974	55.6873889157163
1975	56.3703369806965
1976	57.1876698237715
1977	58.0627311093009
1978	58.9641211912629
1979	59.8520685789287
1980	60.6824504754137
1981	61.3029736066908
1982	61.7297616253152
1983	62.0941222219404
1984	62.3238765000041
1985	62.4658954601826
1986	62.6422677514469
1987	62.8629439241368
1988	63.1109822750109
1989	63.3428439598105
1990	63.5841716572028
1991	63.81732066689
1992	63.9283972727837
1993	63.9117587350281
1994	63.9075635254161
1995	64.0008145442892
1996	64.1709230731391
1997	64.3552497739147
1998	64.5381391131206
1999	64.7787892459991
2000	65.0902730343924
2001	65.4186866327292
2002	65.6921216040623
2003	65.9237113006126
2004	66.1543125044631
2005	66.3714333360168
2006	66.5706358309385
2007	66.7733768748261
2008	66.9646770214584
2009	67.0947259456089
2010	67.40888681712
2011	67.9222119327953
2012	68.373636670584
2013	68.8413068844807
2014	69.295430073677
2015	69.6961401587736
2016	70.1247422511184
2017	70.5631296676858
2018	70.9548116290729
2019	71.2831566380016
2020	71.5545862379035
2021	71.8096470873768
2022	72.0461042382142
2023	72.2267393883286