Year	% of total population
1960	2.89824249610401
1961	2.90155136340878
1962	2.91482877548359
1963	2.92918138289169
1964	2.94191559695482
1965	2.95390436227763
1966	2.96547415706641
1967	2.97504447485715
1968	2.9830888584399
1969	2.99396339205285
1970	3.01017598256223
1971	3.03322260332147
1972	3.0612458233759
1973	3.09245524931077
1974	3.12784066619548
1975	3.16670843063286
1976	3.2104206451685
1977	3.25517445907345
1978	3.29815535470025
1979	3.34128007023042
1980	3.38568115287954
1981	3.43380052924959
1982	3.48660718679775
1983	3.54441433395714
1984	3.6114147701265
1985	3.69119319351705
1986	3.78311075215532
1987	3.88742636710952
1988	4.00241134009104
1989	4.12888563957841
1990	4.25409136578521
1991	4.37909524719084
1992	4.5190582837569
1993	4.67124354330569
1994	4.83083090387776
1995	4.99232017213275
1996	5.15842545035221
1997	5.34855748341163
1998	5.57708542833366
1999	5.83291133945521
2000	6.1006013444279
2001	6.3696282469733
2002	6.63665411760163
2003	6.91156512510406
2004	7.21578456596369
2005	7.5437281488583
2006	7.8462835793833
2007	8.09717548227148
2008	8.32322520478201
2009	8.56110193207626
2010	8.84571070784544
2011	9.1825660954285
2012	9.56218141431565
2013	9.99177872248871
2014	10.4621595795243
2015	10.9638005714737
2016	11.4871786788051
2017	12.0306484497967
2018	12.6027934899493
2019	13.2083487179369
2020	13.8503665118077
2021	14.5115767280848
2022	15.2123345640143
2023	15.9580562624797