Year	% of total population
1960	59.8321958531992
1961	59.65600847679177
1962	59.74344351997377
1963	59.838280930098094
1964	59.8254918538353
1965	59.78531734101661
1966	60.09943273082702
1967	60.56759560250961
1968	60.9644726173021
1969	61.44639042229302
1970	61.910316619882465
1971	62.39905974324499
1972	62.935746837420034
1973	63.490499428669395
1974	64.02169318048186
1975	64.53076734659263
1976	65.00625256680668
1977	65.42071646405131
1978	65.80078360200291
1979	66.14099499450681
1980	66.40416593816897
1981	66.55973311382745
1982	66.64669467755863
1983	66.74498245090193
1984	66.80475551276872
1985	66.83546374542482
1986	66.87988170020245
1987	66.85195368793694
1988	66.66956587478943
1989	66.47354361119699
1990	66.35036395376027
1991	66.18227178057548
1992	66.00678675749324
1993	65.90958608657155
1994	65.85448749038726
1995	65.85598067444705
1996	65.92955328957719
1997	66.03513508614712
1998	66.14667434334062
1999	66.28010675803039
2000	66.4612721027401
2001	66.62698103731769
2002	66.78681531659534
2003	66.9467361445067
2004	67.10080632641625
2005	67.25454798526286
2006	67.3857709555908
2007	67.45368690375832
2008	67.42285958730378
2009	67.36796462741012
2010	67.33076516664492
2011	67.20502424201442
2012	66.98344116482473
2013	66.76653819393124
2014	66.61172977866077
2015	66.51370110173555
2016	66.2771063041561
2017	65.99632696554674
2018	65.79990526479848
2019	65.57353096905118
2020	65.35262887830055
2021	65.1470269459263
2022	64.96224117376475
2023	64.7705259019952