Year	% of total population
1960	8.409760898337742
1961	8.523280949180299
1962	8.628154077176063
1963	8.725601632420076
1964	8.85118524045831
1965	9.019583424986857
1966	9.202558992930234
1967	9.383108273871313
1968	9.56439109878457
1969	9.736955690419705
1970	9.907657837814055
1971	10.084661259320745
1972	10.26834817735741
1973	10.445009034460782
1974	10.625261602110603
1975	10.804719816960167
1976	10.969585636726595
1977	11.143534817888346
1978	11.315854107808777
1979	11.453226057622258
1980	11.490715566585175
1981	11.396893295270557
1982	11.234118489653346
1983	11.070032810745522
1984	10.973053915899284
1985	10.973661345622897
1986	11.04121366504035
1987	11.135104790304752
1988	11.253961159989917
1989	11.404560122766568
1990	11.578130636029652
1991	11.771615157108739
1992	11.9863886868744
1993	12.214336869299549
1994	12.432814016400162
1995	12.639383300925902
1996	12.81704161687593
1997	12.96382261187468
1998	13.081360353131338
1999	13.181320899187122
2000	13.313979103968682
2001	13.488571730595414
2002	13.696552419465773
2003	13.911218474084912
2004	14.124019641768902
2005	14.323528229243816
2006	14.47567661354017
2007	14.5445024138869
2008	14.535863049280053
2009	14.522840745617183
2010	14.513566089024115
2011	14.581991532998307
2012	14.776189304438008
2013	15.007485370448556
2014	15.272923683024356
2015	15.538183303667127
2016	15.782054745576335
2017	16.023237644334955
2018	16.277353002995675
2019	16.552640254139554
2020	16.816020948191063
2021	17.033702380507826
2022	17.26810933977962
2023	17.58973455233691