Year	% of total population
1960	4.27476714994109
1961	4.407521807574833
1962	4.5481791483343486
1963	4.685634866804851
1964	4.832248500447939
1965	4.984285480531576
1966	5.143582807598293
1967	5.310397046787298
1968	5.487348674442971
1969	5.6769278799973915
1970	5.862877693617013
1971	6.036821991207911
1972	6.22175053990618
1973	6.419615909796022
1974	6.6244536423689135
1975	6.833836907234989
1976	7.046186158320008
1977	7.267437310260854
1978	7.474808968098328
1979	7.672644523339134
1980	7.91354059312595
1981	8.157736494218366
1982	8.355971052058239
1983	8.548327887123842
1984	8.7569799573738
1985	8.961426742300809
1986	9.17498921585598
1987	9.386000484511356
1988	9.59250403419648
1989	9.798308349862065
1990	10.030141592200792
1991	10.272124749042487
1992	10.306231510800465
1993	10.333741615607797
1994	10.364989594373656
1995	10.403007101548866
1996	10.569416244521058
1997	10.626272873327988
1998	10.688117844980797
1999	10.742646015473694
2000	10.84793211678432
2001	10.957161799679563
2002	11.043072628011458
2003	11.121105278183384
2004	11.216558762801498
2005	11.244110881535738
2006	11.260611849531692
2007	11.185641234215872
2008	11.253385325958842
2009	11.346384733344284
2010	11.440169005705007
2011	11.268473536917181
2012	11.185374575461358
2013	11.179527838631298
2014	11.21070672688731
2015	11.387318741737868
2016	11.591367896746496
2017	11.688050844666835
2018	11.76985775089042
2019	11.848322087716829
2020	11.936831413201894
2021	12.0451181840028
2022	12.169651001600622
2023	12.302894988760707