Year	% of total population
1960	61.370033978921384
1961	61.93089694332167
1962	62.49594153970639
1963	63.074916912727424
1964	63.65256311676221
1965	64.22768912313897
1966	64.79189648535228
1967	65.36285463725555
1968	65.91936165539471
1969	66.45000957922868
1970	66.9630035978019
1971	67.42687990326277
1972	67.85923338963033
1973	68.28286589529438
1974	68.70237069275392
1975	69.10714155700143
1976	69.46153010745915
1977	69.8113357965931
1978	70.16597943672451
1979	70.5031019529607
1980	70.82165283211121
1981	71.15665605359868
1982	71.4550688796809
1983	71.73633215201642
1984	72.00544689842886
1985	72.26935922004714
1986	72.55725223383048
1987	72.86764294887416
1988	73.16799063520651
1989	73.41963278884154
1990	73.64592122627951
1991	73.89659203943955
1992	74.13342731484492
1993	74.35070096557844
1994	74.56886080832959
1995	74.78634932546248
1996	74.99606079862859
1997	75.19540515850707
1998	75.3931333333388
1999	75.59013745403173
2000	75.78450448554331
2001	76.08598296907282
2002	76.43688886371287
2003	76.77008787529539
2004	77.09400593972241
2005	77.40830136612429
2006	77.70215402714108
2007	77.98699343561968
2008	78.26389332667212
2009	78.52602673893342
2010	78.77746306293386
2011	78.96844425005034
2012	79.13323101984595
2013	79.29522561249281
2014	79.45747349841874
2015	79.62743484064448
2016	79.80232136312964
2017	79.98073970871663
2018	80.16335902025268
2019	80.35502653379515
2020	80.54362111219812
2021	80.72959612262551
2022	80.94082080334422
2023	81.14707603272556