Year	% of total population
1960	63.26198618107933
1961	63.77769557490113
1962	64.3052373838
1963	64.85099104033289
1964	65.39486248544367
1965	65.94032188917842
1966	66.47134336257048
1967	67.00715414468455
1968	67.53388714450625
1969	68.03509907627458
1970	68.5163172459422
1971	68.93097836558648
1972	69.3116058795271
1973	69.68313306869912
1974	70.0518444727427
1975	70.39645004449707
1976	70.67103334757913
1977	70.9361441709234
1978	71.2025019232799
1979	71.46976519221562
1980	71.73707027123058
1981	72.01885557144041
1982	72.25605482649333
1983	72.47542413914317
1984	72.68163791569248
1985	72.88116418333453
1986	73.10969074874083
1987	73.37347929176194
1988	73.62493794218086
1989	73.83891376969555
1990	74.05923264099388
1991	74.31297021092013
1992	74.56576998546981
1993	74.8215023643604
1994	75.0796549729175
1995	75.33284418166545
1996	75.56788459571506
1997	75.79000415257323
1998	76.01408251174749
1999	76.23824273318169
2000	76.45447769913721
2001	76.80024100607325
2002	77.20686380709182
2003	77.59629738108293
2004	77.9730914419234
2005	78.33566944228156
2006	78.66705606883541
2007	78.98091940085932
2008	79.28396203046275
2009	79.57397277837934
2010	79.85237575545503
2011	80.0620730657467
2012	80.23587761647985
2013	80.40334811148443
2014	80.57107923000882
2015	80.74378496266313
2016	80.91906807879185
2017	81.09823891442873
2018	81.280715726078
2019	81.4728759124997
2020	81.66180589965015
2021	81.85057908036484
2022	82.10649321894974
2023	82.31513980986063