Year	% of total population
1960	14.021585678066351
1961	14.186762018380762
1962	14.340791976353561
1963	14.478599449886751
1964	14.602554279987526
1965	14.691531745130776
1966	14.73231754339222
1967	14.843161875805977
1968	14.92841279305363
1969	15.003249129937121
1970	15.083476575285037
1971	15.16754019652492
1972	15.253090703491706
1973	15.33295507581928
1974	15.408179699118993
1975	15.4773192370214
1976	15.545789391497264
1977	15.619958675603819
1978	15.70804920832963
1979	15.809208298194367
1980	15.920206209764562
1981	16.030945796665208
1982	16.14122881062415
1983	16.24982548965136
1984	16.358542616954132
1985	16.500064472186807
1986	16.64980999932382
1987	16.813566459604928
1988	16.999665872991084
1989	17.210463257818546
1990	17.44195483827473
1991	17.686570790433283
1992	17.94995535379561
1993	18.233345842839388
1994	18.446724161860786
1995	18.292149150073886
1996	18.17179273743313
1997	18.072697194000217
1998	17.992759850319537
1999	17.931058297823256
2000	17.8823055889451
2001	17.8414512757872
2002	17.806906115085145
2003	17.774503673704345
2004	17.770258617548684
2005	17.890897721523277
2006	18.015839660542728
2007	18.14038133736973
2008	18.262318381930232
2009	18.378823912532276
2010	18.487281808283257
2011	18.55293727783877
2012	18.61481748030294
2013	18.705450234702063
2014	18.794739463334682
2015	18.886578468060343
2016	18.98275040697292
2017	19.0851109386042
2018	19.19692557831654
2019	19.319124723614973
2020	19.44791046466031
2021	19.59300807489489
2022	19.742480586740964
2023	19.869976641130922