Year	% of total population
1960	10.5707273664954
1961	10.6383276030753
1962	10.6874791586261
1963	10.7469774789569
1964	10.8789540669772
1965	11.0575396378757
1966	11.2470682925563
1967	11.4493482762404
1968	11.6576713271483
1969	11.8617046790441
1970	12.0556800068073
1971	12.2511344236454
1972	12.4329065860374
1973	12.5820934733641
1974	12.7112331992702
1975	12.8104051769117
1976	12.8839109552185
1977	12.9474426937686
1978	12.9819356778824
1979	12.9507531036037
1980	12.821119443243
1981	12.5967185345266
1982	12.3342887595921
1983	12.0889128973298
1984	11.8783272409853
1985	11.7125543858169
1986	11.641515227532
1987	11.6768906966889
1988	11.7796682773515
1989	11.9382354120535
1990	12.1231907149239
1991	12.3481502550986
1992	12.6363770701948
1993	12.9320545373554
1994	13.1821599034244
1995	13.4310228136446
1996	13.7451453317747
1997	14.098641830997
1998	14.4361230814466
1999	14.7714231723735
2000	15.1464381107945
2001	15.5657127404287
2002	16.0238575083916
2003	16.4990441703983
2004	16.9627863392186
2005	17.381562823743
2006	17.7436677400605
2007	18.0356590579366
2008	18.260803046114
2009	18.4516084428819
2010	18.6042981531793
2011	18.7858875460165
2012	19.0286399342435
2013	19.3160033305661
2014	19.6451684925056
2015	19.9484476176539
2016	20.2239854956432
2017	20.4997282417561
2018	20.7494663883422
2019	21.052273205759
2020	21.4001513927926
2021	21.6149417344079
2022	21.8559577143394
2023	22.2412273117069