Year	% of total population
1960	57.6623938109769
1961	57.54199859957336
1962	57.48355452711097
1963	57.484829362250835
1964	57.54922518493249
1965	57.617557069096996
1966	57.6775984190549
1967	57.757739333859924
1968	57.84473797849271
1969	57.954945657573
1970	58.09249245559888
1971	58.24271199443977
1972	58.40601718036445
1973	58.59859001842429
1974	58.78368043735979
1975	58.94428883466374
1976	59.097084609021756
1977	59.24656965515734
1978	59.39413858042575
1979	59.531577542042584
1980	59.65523294581732
1981	59.766577292081124
1982	59.86187950489949
1983	59.9194281799296
1984	59.959853349291194
1985	59.991746107912704
1986	59.98671201885519
1987	59.95199710204231
1988	59.916484536013634
1989	59.84302268695859
1990	59.758007561563325
1991	59.74510106296244
1992	59.79507227099423
1993	59.84780688553835
1994	59.85994298221111
1995	59.959084062749916
1996	60.198429792233455
1997	60.5152666130548
1998	60.89649343049602
1999	61.32438541325458
2000	61.70867773851821
2001	62.022411987499055
2002	62.317663593198276
2003	62.64883067692952
2004	63.06123055353048
2005	63.51520108951415
2006	63.969227955651164
2007	64.42215900014166
2008	64.86061547376885
2009	65.25567303961468
2010	65.51027877730725
2011	65.63178294160318
2012	65.76599948961959
2013	65.87770706631088
2014	65.93314452235683
2015	66.0339115235321
2016	66.18064954260848
2017	66.34563584361278
2018	66.49814776886205
2019	66.59322465248142
2020	66.63294086701404
2021	66.68359616350818
2022	66.74937127614307
2023	66.78556314582949