Year	% of total population
1960	4.20055287191486
1961	4.09800773225931
1962	3.98356542533557
1963	3.8615092677653
1964	3.73855879003057
1965	3.61938355159041
1966	3.50567609406623
1967	3.39832998928245
1968	3.29731078466667
1969	3.20400892372182
1970	3.11594931084335
1971	3.03547076228084
1972	2.96471054741736
1973	2.89983074136301
1974	2.83833661316344
1975	2.77785433968185
1976	2.71818341189662
1977	2.65782495220448
1978	2.59849190760832
1979	2.54373320337237
1980	2.49404180199995
1981	2.45090781870115
1982	2.41459206760783
1983	2.38380171986835
1984	2.35984515993619
1985	2.34336498161725
1986	2.33417332251313
1987	2.33282382888612
1988	2.33810104119898
1989	2.34799396186114
1990	2.35649906179619
1991	2.36353088428665
1992	2.37211452363173
1993	2.38272184395594
1994	2.39913551741564
1995	2.42527525153117
1996	2.46275746686874
1997	2.51087687869758
1998	2.56863436010588
1999	2.63465847616368
2000	2.70986520637937
2001	2.79435091055931
2002	2.88394638530734
2003	2.97358294617991
2004	3.05829832606798
2005	3.13609963979263
2006	3.20611381836554
2007	3.26572056211392
2008	3.32204486065426
2009	3.37506456942471
2010	3.42716982781698
2011	3.48072030306135
2012	3.54075638985377
2013	3.4299594506118
2014	3.18595716852779
2015	3.11739852130446
2016	3.19084789233306
2017	3.27497313732238
2018	3.37449845793906
2019	3.49206516857892
2020	3.61247670244304
2021	3.72360214391865
2022	3.83844628350933
2023	3.97791665867297