Year	% of total population
1960	4.67412618818634
1961	4.51553506911057
1962	4.3825172085408
1963	4.27077439899033
1964	4.18165846357369
1965	4.11756480883397
1966	4.07821998090838
1967	4.06033337804278
1968	4.05908254665917
1969	4.07015079451981
1970	4.10176346011456
1971	4.15880279279125
1972	4.2237161035884
1973	4.28881001951672
1974	4.36010930167184
1975	4.43680460043782
1976	4.51630713355768
1977	4.59566062065241
1978	4.68020558431705
1979	4.77053840610605
1980	4.86342203871351
1981	4.96127092731206
1982	5.06549654625603
1983	5.17907831510062
1984	5.30294780416098
1985	5.43249215869068
1986	5.56462665909629
1987	5.69764054076055
1988	5.83018577882155
1989	5.95900356641834
1990	6.08693198258507
1991	6.21812935724842
1992	6.35111765429142
1993	6.48544932105134
1994	6.61142807714789
1995	6.72463828709802
1996	6.82773688271681
1997	6.92151076562042
1998	7.00834648942213
1999	7.09597911111922
2000	7.14576048800911
2001	7.15042989597139
2002	7.15830416839901
2003	7.17253582052284
2004	7.18759374792687
2005	7.20866707133209
2006	7.24120471612836
2007	7.31420773239561
2008	7.41006108137812
2009	7.51762122124246
2010	7.64261124657587
2011	7.78355964844724
2012	8.00415013512538
2013	8.30309586427423
2014	8.6342744072977
2015	8.98650318307226
2016	9.33697958142762
2017	9.69699484756284
2018	10.0747449921713
2019	10.449222214257
2020	10.8029791003068
2021	11.1566474760845
2022	11.5368106557382
2023	11.9167062635122