Year	% of total population
1960	49.7852390750271
1961	49.1777299849614
1962	48.5885732252581
1963	48.0313425442895
1964	47.508819835641
1965	47.0296009234828
1966	46.6150663432729
1967	46.2725363074459
1968	46.010727038212
1969	45.8496137001132
1970	46.0437481812009
1971	46.538749683866
1972	47.0466949096818
1973	47.56852751969
1974	48.0797882276826
1975	48.540767913038
1976	48.9514774535692
1977	49.3344022186593
1978	49.7031440326414
1979	50.0734540127655
1980	50.4645120978682
1981	50.9036910300746
1982	51.3580334961785
1983	51.7582071075712
1984	52.0909170944195
1985	52.3965921160669
1986	52.7214328367066
1987	53.0676999561339
1988	53.4236745408717
1989	53.8063386172943
1990	54.295472273561
1991	54.8910538336505
1992	55.6423302827483
1993	56.5027204726926
1994	57.3081431840145
1995	58.0434268910652
1996	58.7202618708961
1997	59.3603252409073
1998	59.9649357687036
1999	60.5046902003406
2000	61.0369905956113
2001	61.7151379103139
2002	62.5283143643831
2003	63.3451193371216
2004	64.1187537673756
2005	64.8515135849273
2006	65.5585557714777
2007	66.2415382227582
2008	66.8754745634017
2009	67.4427992633517
2010	68.1235557375611
2011	68.8984028046042
2012	69.5573692844435
2013	70.1158476478415
2014	70.6281624795842
2015	71.1208099166966
2016	71.5628339101033
2017	71.9070237379596
2018	72.1628215506386
2019	72.3664280294652
2020	72.5106214415033
2021	72.6272811526762
2022	72.7295219826807
2023	72.7596518188526