Year	% of total population
1960	42.2366982873782
1961	42.7284637790042
1962	43.2568008113884
1963	43.8112105963273
1964	44.4162015117044
1965	44.9719576022759
1966	45.4493481085207
1967	45.9027219720007
1968	46.3160658964877
1969	46.6710709011754
1970	47.0234301023741
1971	47.2515759547965
1972	47.2155659669226
1973	47.0547660278499
1974	46.8777519776017
1975	46.7052188821014
1976	46.5432112611631
1977	46.3701267370036
1978	46.190406338986
1979	46.0315697025743
1980	45.8895277475342
1981	45.7788439297586
1982	45.7095732809725
1983	45.6775149671923
1984	45.6986710546865
1985	45.7817421803517
1986	45.9261093085861
1987	46.110489218451
1988	46.2908445962914
1989	46.4498048778015
1990	46.5861854334449
1991	46.7119353458165
1992	46.8124933554361
1993	46.8960623953969
1994	46.9615914567423
1995	46.9600124063303
1996	46.9020898087751
1997	46.8111267282293
1998	46.6948819225575
1999	46.5734627264838
2000	46.4422789178179
2001	46.3071477987023
2002	46.177175408838
2003	46.0506884594572
2004	45.937723498192
2005	45.8501440944414
2006	45.7883969373496
2007	45.7482332109849
2008	45.7343403565688
2009	45.7385956452008
2010	45.7448067256614
2011	45.7453625207997
2012	45.7474677967949
2013	45.7563834660662
2014	45.7641643452779
2015	45.7595480273713
2016	45.7185863618669
2017	45.6410930016418
2018	45.5459445531786
2019	45.4255877277043
2020	45.3066016809735
2021	45.1791048303746
2022	45.0151306638764
2023	44.8086420851046