Year	% of total population
1960	29.038426147632613
1961	28.925506727895343
1962	28.600435596319425
1963	28.167090066239403
1964	27.691802113498234
1965	27.162009594645795
1966	26.560321665478213
1967	25.953811083784295
1968	25.392997844047674
1969	24.8776934495984
1970	24.374669672549985
1971	23.93442310623825
1972	23.61279605386024
1973	23.4075693936902
1974	23.357876399475487
1975	23.433581579365192
1976	23.5903767493379
1977	23.750608572009654
1978	23.854580898435195
1979	23.958229048151235
1980	24.08485939267233
1981	24.211679063471998
1982	24.227752182179877
1983	24.12926221888287
1984	24.035928699041165
1985	23.963667788576153
1986	23.891970110215237
1987	23.784965672001576
1988	23.612474315091227
1989	23.35491325347203
1990	23.006535847634225
1991	22.615397477387784
1992	22.195921977504934
1993	21.742208679289007
1994	21.264410347695147
1995	20.76613025884487
1996	20.27271384206007
1997	19.784947765270456
1998	19.28275291824844
1999	18.760834769618906
2000	18.21762205468794
2001	17.678766016104337
2002	17.153750016767713
2003	16.6585147542928
2004	16.207291175191536
2005	15.823027420398601
2006	15.51636560637408
2007	15.292166233475557
2008	15.155279856374554
2009	15.088916988360065
2010	15.068015314466598
2011	15.05104295156611
2012	15.034262934058466
2013	15.025575718827639
2014	15.022849083830971
2015	15.036557955280239
2016	15.080184170951256
2017	15.165777273260826
2018	15.258864804346445
2019	15.325884944019926
2020	15.363146185825341
2021	15.378250029119137
2022	15.259005547550801
2023	15.13149855320089