Year	% of total population
1960	8.299790138519972
1961	8.405958969943539
1962	8.502479079079645
1963	8.595094980038406
1964	8.70294057113914
1965	8.82784595730847
1966	8.966833689674951
1967	9.121091832932029
1968	9.265279983113334
1969	9.391987533025777
1970	9.526783467992448
1971	9.666528260008516
1972	9.821026412023832
1973	9.983322003935404
1974	10.15099738910511
1975	10.324741054711122
1976	10.498888176312663
1977	10.682560605794993
1978	10.862800714367879
1979	11.01860322439225
1980	11.107548226345177
1981	11.113506094851687
1982	11.076338529027105
1983	11.02734468216111
1984	11.02983661087044
1985	11.116974495704698
1986	11.244882947350614
1987	11.379411042270613
1988	11.541549612745948
1989	11.71514448990318
1990	11.888089327400916
1991	12.080632798834102
1992	12.285716593847281
1993	12.487938856660344
1994	12.689375086322954
1995	12.886780101292223
1996	13.060181427673255
1997	13.21108413657113
1998	13.341604713624083
1999	13.456640665373282
2000	13.58784797562659
2001	13.756198089298298
2002	13.939978357516676
2003	14.120875872121461
2004	14.308601082447536
2005	14.502425409175697
2006	14.676909699062058
2007	14.80935086993446
2008	14.917611103939459
2009	15.033496228522383
2010	15.149766645213017
2011	15.329145827495488
2012	15.624472525374513
2013	15.963762182418478
2014	16.30691432461846
2015	16.619602477786124
2016	16.93664172794374
2017	17.260665410770894
2018	17.56705028474987
2019	17.897854918668877
2020	18.251684262793383
2021	18.59561061450569
2022	18.897055803542028
2023	19.246867356857823