Year	% of total population
1960	48.4205023524433
1961	48.8776301755066
1962	49.3559608875517
1963	49.6810788646408
1964	49.854343220339
1965	49.9551109401052
1966	50.010363983086
1967	50.0583547971668
1968	50.1259347482281
1969	50.2661337677344
1970	50.6186518928901
1971	51.1352311232718
1972	51.6427324234758
1973	52.0978653300151
1974	52.5213704673928
1975	52.957984614084
1976	53.4415100587797
1977	53.9825737047914
1978	54.5373552246405
1979	55.0935388744129
1980	55.603533472199
1981	55.9799762180889
1982	56.2863161466359
1983	56.5700285830951
1984	56.8185390903375
1985	57.0234598560389
1986	57.1742215645128
1987	57.2487278838523
1988	57.2431060810204
1989	57.1714051157968
1990	57.0580116274206
1991	56.9506955288162
1992	56.8538764914383
1993	56.7583147692187
1994	56.667336029911
1995	56.5888279245707
1996	56.5321100917431
1997	56.5165759524988
1998	56.5455894563892
1999	56.5822828766885
2000	56.6662945757734
2001	56.8659556957685
2002	57.1505921584131
2003	57.4744781284249
2004	57.8754197360543
2005	58.3976665385825
2006	59.0147349901034
2007	59.6718840065623
2008	60.3134700888344
2009	60.8514250623126
2010	61.3843334943801
2011	61.9545203461609
2012	62.432601063483
2013	62.8370601000094
2014	63.2032020529909
2015	63.553184862171
2016	63.8994608309546
2017	64.2561106281463
2018	64.6311746241533
2019	65.0035396920996
2020	65.3478100846522
2021	65.6433884756301
2022	65.5903777740132
2023	65.2563504081795