Year	% of total population
1960	14.289757850775263
1961	14.438935011206707
1962	14.566438703732068
1963	14.675517792012384
1964	14.785859136869101
1965	14.900267255725115
1966	15.011800552969367
1967	15.124800623415636
1968	15.246608086441224
1969	15.368947733565228
1970	15.51661598541781
1971	15.613757485249861
1972	15.647471970816383
1973	15.673374821635187
1974	15.707708508514116
1975	15.742195090003769
1976	15.783008459827375
1977	15.828994730325183
1978	15.87234367921441
1979	15.915273588902865
1980	15.952443799898644
1981	15.977654002245604
1982	15.970695230403885
1983	15.972352665928042
1984	15.97946304141762
1985	15.993988026458144
1986	16.015764325777198
1987	16.084188903661932
1988	16.07689394762235
1989	16.11314503715798
1990	16.133416587703014
1991	16.136227320550226
1992	16.14521749259049
1993	16.14474917893765
1994	16.148436583179226
1995	16.15521977932786
1996	16.164221808543356
1997	16.17139311665381
1998	16.178630079600804
1999	16.19142984987808
2000	16.227093445266036
2001	16.260795314854704
2002	16.309006241114382
2003	16.343746293899443
2004	16.374097337006642
2005	16.411727922081877
2006	16.462083355459246
2007	16.514084109655656
2008	16.569307656971358
2009	16.637702680254243
2010	16.72158943952421
2011	16.858295366791726
2012	16.942601901233534
2013	17.01110069639402
2014	17.07859727771723
2015	17.152854486295055
2016	17.229669103101777
2017	17.3166513624341
2018	17.402638983010128
2019	17.479600015583625
2020	17.556591333688253
2021	17.65665346913909
2022	17.73187497393711
2023	17.72557806311852