Year	% of total population
1960	44.50789271439007
1961	45.2073380737434
1962	45.86736851849258
1963	46.5349208922556
1964	47.2096938544833
1965	47.88113003341918
1966	48.50539627872039
1967	49.067806458232496
1968	49.63850393987693
1969	50.21515291384565
1970	50.78027618676387
1971	51.42665617342005
1972	52.1464689909273
1973	52.86595833187291
1974	53.585430053964345
1975	54.2944661807973
1976	54.992254459669844
1977	55.705067734602
1978	56.434276359789656
1979	57.10405793499936
1980	57.706124522696896
1981	58.16395386217631
1982	58.558632517809734
1983	58.955344885466175
1984	59.352577733087955
1985	59.74670785531344
1986	60.131109502475084
1987	60.509667320531925
1988	60.89172738500565
1989	61.183139288669366
1990	61.39184891050757
1991	61.603312369398864
1992	61.69341933306956
1993	61.66523865156157
1994	61.636753601515714
1995	61.60923061255979
1996	61.58724765755344
1997	61.56317794430449
1998	61.53401823352497
1999	61.505069788599215
2000	61.47618735749829
2001	61.495453301099886
2002	61.555760747199194
2003	61.602155691992415
2004	61.64818104905783
2005	61.70269222419049
2006	61.763895445527076
2007	61.841845428767094
2008	61.92454054662049
2009	61.986046876008906
2010	62.026065024419744
2011	62.06393448523134
2012	62.08177697388677
2013	62.096813736679366
2014	62.11364514277383
2015	62.14067245820818
2016	62.18448432299318
2017	62.2484547292635
2018	62.33366660358464
2019	62.43813921310223
2020	62.561454243107015
2021	62.68999647019173
2022	62.8397480410558
2023	63.03468315963735