Year	% of total population
1960	62.2846444145635
1961	62.7804013803789
1962	63.3940552587924
1963	63.9592626213531
1964	64.4134050092394
1965	64.806088003429
1966	65.1299334877345
1967	65.4292308134768
1968	65.7349898493556
1969	65.9772182189375
1970	66.2263403045312
1971	66.5652051936249
1972	66.8958524566951
1973	67.1371921977478
1974	67.2944857944952
1975	67.3726187383367
1976	67.4086523424522
1977	67.4229333397485
1978	67.4861438431109
1979	67.59845463413
1980	67.7150858117034
1981	67.8649641328491
1982	67.9926146619925
1983	68.0596729680153
1984	68.1253485560242
1985	68.1049738126444
1986	67.9718838653992
1987	67.829608287538
1988	67.6199921905348
1989	67.4162290490162
1990	67.2971666755238
1991	67.212697058989
1992	67.1349418230939
1993	67.0316316349903
1994	66.893990162111
1995	66.7527319705799
1996	66.6690667984983
1997	66.6746661076461
1998	66.7809019598065
1999	66.8939022447237
2000	66.9283543226327
2001	66.9189056867263
2002	66.8831482856146
2003	66.8246950070296
2004	66.7302392953824
2005	66.7029001323085
2006	66.5986929410213
2007	66.5349389990601
2008	66.5650045108073
2009	66.4534545587364
2010	66.1826088796735
2011	65.6909976418692
2012	65.1070396464924
2013	64.5045851883061
2014	63.9327232316681
2015	63.4347976926928
2016	63.0289347885862
2017	62.656011163116
2018	62.3163231505036
2019	62.0629692477809
2020	61.848581093154
2021	61.6798488870649
2022	61.5524120355284
2023	61.4690501236639