Year	% of total population
1960	55.550279930595
1961	55.497413888652126
1962	55.320353928883435
1963	54.96106490644092
1964	54.667091994301906
1965	54.530635020406834
1966	54.46089230037063
1967	54.49115102779587
1968	54.54695142020238
1969	54.587196926195894
1970	54.67210197064142
1971	54.75752610430025
1972	54.89170722566963
1973	55.031805433873295
1974	55.08929565221708
1975	55.137234011607454
1976	55.206331012685766
1977	55.443931198052276
1978	55.93822836958542
1979	56.444573603917064
1980	56.87421904681638
1981	57.272807209752266
1982	57.594627114211725
1983	57.941862588737145
1984	58.33163997868044
1985	58.68919700879746
1986	59.00813851424217
1987	59.266689632820665
1988	59.50453549109553
1989	59.7080024767268
1990	59.84611265216041
1991	59.99545834305668
1992	60.160197887304236
1993	60.32170548368614
1994	60.52927271021376
1995	60.7921337385465
1996	61.10657917071555
1997	61.47867006500648
1998	61.85313145553999
1999	62.21551701846154
2000	62.59115652212661
2001	62.985329364828225
2002	63.402055875562255
2003	63.81272881765104
2004	64.21955034973871
2005	64.63153252939617
2006	64.98396615237185
2007	65.25752864983647
2008	65.48901955449035
2009	65.68392552413141
2010	65.85116803451903
2011	65.98040586837594
2012	66.05934164678463
2013	66.10322872609628
2014	66.11795163962911
2015	66.11147969010801
2016	66.09420831138354
2017	66.04991988548889
2018	66.0050961668832
2019	65.98270805601467
2020	65.9928716909578
2021	66.05618844507148
2022	66.11978198033498
2023	66.1853263171923