Year	% of total population
1960	4.33463266621842
1961	4.30461416668101
1962	4.29266420104049
1963	4.2964614322115
1964	4.31348109876946
1965	4.33897557218527
1966	4.36177210012138
1967	4.37273638386436
1968	4.3761308303457
1969	4.37304774654172
1970	4.36128203663258
1971	4.34049555389715
1972	4.30891936734958
1973	4.26778199272796
1974	4.22533293168618
1975	4.18339376099365
1976	4.14224007622113
1977	4.10378313858186
1978	4.05912447873479
1979	4.0106593908865
1980	3.95213502835541
1981	3.86981177649676
1982	3.76883541314747
1983	3.66056859681082
1984	3.56335057658669
1985	3.52862443832315
1986	3.54027827882527
1987	3.54457332546077
1988	3.55090799162631
1989	3.54317542502785
1990	3.52465701174846
1991	3.52302442693261
1992	3.52522427792828
1993	3.52638787730712
1994	3.52978574662183
1995	3.53168340411952
1996	3.52100068932672
1997	3.52080412373999
1998	3.54274689085872
1999	3.56970995293772
2000	3.58195526429665
2001	3.58212367038499
2002	3.5920332993236
2003	3.60627660597245
2004	3.61922683101404
2005	3.62040364434599
2006	3.59885918601664
2007	3.54024311840043
2008	3.4446805277593
2009	3.33040507211797
2010	3.2125043764386
2011	3.10937865093588
2012	3.03281083241169
2013	2.98538316415662
2014	2.96592815962052
2015	2.9693529347069
2016	2.99491646064267
2017	3.03905932704239
2018	3.09891974070271
2019	3.17687592046399
2020	3.23618674518954
2021	3.32320895534634
2022	3.47230378787369
2023	3.64363319601445