Year	% of total population
1960	6.717614052207856
1961	7.022341092289211
1962	7.335420037145914
1963	7.658992901937507
1964	7.99665752565864
1965	8.350034843205576
1966	8.719822328441248
1967	9.104120720520559
1968	9.507308087213866
1969	9.931370632067841
1970	10.304933628318585
1971	10.602895527391796
1972	10.91338004441848
1973	11.238688892364834
1974	11.58484860453096
1975	11.956069179032774
1976	12.347242588460313
1977	12.73942724294621
1978	13.131338582677166
1979	13.455237896494157
1980	13.68568910090221
1981	13.908259526261585
1982	14.137009001636661
1983	14.368718886518339
1984	14.605378405650857
1985	14.84863157894737
1986	15.092552026286965
1987	15.341182870141429
1988	15.655098619329388
1989	15.834768928220255
1990	15.874852836511227
1991	15.937963812223796
1992	15.973668008617459
1993	16.00909264043051
1994	16.099171258698213
1995	16.223174584707163
1996	16.35024084190973
1997	16.491109948541293
1998	16.63909011579967
1999	16.813912959528814
2000	17.03850150456781
2001	17.272906645271128
2002	17.532406714761308
2003	17.807050073447837
2004	18.083027736685555
2005	18.36300298584994
2006	18.634348382142328
2007	18.873348713250657
2008	19.086470014383945
2009	19.282381983512586
2010	19.50677974608587
2011	19.749815121961376
2012	19.980626317636933
2013	20.189689714653205
2014	20.381954201268666
2015	20.56027242567336
2016	20.749797848412236
2017	20.981893519487123
2018	21.238665781665755
2019	21.4090107198083
2020	21.621688469194726
2021	21.916725297323268
2022	22.199384898534046
2023	22.41436266288151