Year	% of total population
1960	6.622004623016957
1961	6.685022316649864
1962	6.752399070953173
1963	6.809861769703694
1964	6.87569800964503
1965	6.951427020234864
1966	7.039523332814945
1967	7.13811094408196
1968	7.248131019713472
1969	7.361319821000971
1970	7.472704533339325
1971	7.585247152711733
1972	7.704253487431871
1973	7.829582764635297
1974	7.957975191365994
1975	8.082069480832034
1976	8.192486051647373
1977	8.299128963751173
1978	8.40897908695249
1979	8.551636538237476
1980	8.518883097371313
1981	8.413052418153043
1982	8.307898851227275
1983	8.205229813158214
1984	8.106759645694376
1985	8.012848672959244
1986	7.924120026121057
1987	7.840822757025231
1988	7.76310429539785
1989	7.735015239353231
1990	7.8524821620701015
1991	7.975891040834234
1992	8.107610815823932
1993	8.249472560464383
1994	8.405202255795144
1995	8.57496518057227
1996	8.75991214420195
1997	8.959549257038024
1998	9.171748407565024
1999	9.407481695090453
2000	9.688771334470077
2001	9.987127303733352
2002	10.296301291376729
2003	10.616009104541133
2004	10.94822702618684
2005	11.292463823530067
2006	11.653451146967665
2007	12.028205615873732
2008	12.41457653991441
2009	12.8069341504565
2010	13.208050949003999
2011	13.623166148904463
2012	14.05220007595408
2013	14.495682671302978
2014	14.956292673080426
2015	15.436971679288344
2016	15.940151704784359
2017	16.468263370554574
2018	17.02192387598374
2019	17.473538140522585
2020	17.924218006690936
2021	18.37896301360521
2022	18.843002774220615
2023	19.30329120428651