Year	% of total population
1960	4.95346613567309
1961	4.83909876070878
1962	4.72449177249119
1963	4.61245622956572
1964	4.50737770449549
1965	4.41139683643135
1966	4.32436225415164
1967	4.24574156423516
1968	4.17515568436016
1969	4.11298415683295
1970	4.0594305004097
1971	4.01381789902324
1972	3.97520424281009
1973	3.94333334999236
1974	3.91844252772118
1975	3.89864923896832
1976	3.88416651006973
1977	3.87569382598575
1978	3.86923757309908
1979	3.85978311629515
1980	3.8462882851267
1981	3.82925744123242
1982	3.8088052854914
1983	3.78703464681683
1984	3.76819849049729
1985	3.75511108535884
1986	3.74606158893698
1987	3.73995326981798
1988	3.73923879700274
1989	3.74710449740608
1990	3.7633697559121
1991	3.78843518832789
1992	3.82245718020577
1993	3.97842743083245
1994	4.23246354414264
1995	4.45050396472142
1996	4.63384020285963
1997	4.78726610404922
1998	4.91384744744977
1999	5.01383893511742
2000	5.09283741837215
2001	5.08878030441967
2002	5.0159972666959
2003	4.95280201400449
2004	4.89978656245107
2005	4.85775996471512
2006	4.82498988096875
2007	4.80146948580354
2008	4.78919635693931
2009	4.78923285429995
2010	4.80003975244906
2011	4.81927345790362
2012	4.84169508359606
2013	4.85781947510036
2014	4.86577455548062
2015	4.87590019030962
2016	4.89390696479109
2017	4.91785975704588
2018	4.948201092367
2019	4.9861197134542
2020	4.97840930778252
2021	4.91015666909944
2022	4.84987455119432
2023	4.87811709679833