Year	% of total population
1960	49.8437895204487
1961	49.7009464408813
1962	49.6737965008875
1963	49.6349797949115
1964	49.5767908018034
1965	49.4883364344831
1966	49.3644078047445
1967	49.2136340384552
1968	49.0610328238474
1969	48.9529527935597
1970	48.9799990049256
1971	49.1002742571736
1972	49.2156070696468
1973	49.3255632594178
1974	49.4294886551903
1975	49.5316103472444
1976	49.6338405731287
1977	49.7320982255476
1978	49.8241672553493
1979	49.9097127542732
1980	49.9894538410167
1981	50.0630079023738
1982	50.1307678689263
1983	50.1998607911191
1984	50.2700125248214
1985	50.3340764833003
1986	50.39171265553
1987	50.4582591994787
1988	50.5298473517036
1989	50.5922987180032
1990	50.6500156653708
1991	50.6927519879274
1992	50.7286716722184
1993	50.78715964618
1994	50.851331422428
1995	50.8715662373305
1996	50.8588054938523
1997	50.8463570998496
1998	50.8439653009228
1999	50.8571521464671
2000	50.8678752099388
2001	50.8752987544791
2002	50.8798828326265
2003	50.8688149892559
2004	50.8494829159147
2005	50.8291904784746
2006	50.8094844150034
2007	50.7906958326104
2008	50.7709924642448
2009	50.7514414861349
2010	50.7337619523215
2011	50.7168214037192
2012	50.701107482794
2013	50.6862622338117
2014	50.6716316595448
2015	50.6574955006131
2016	50.6420978594703
2017	50.625718586094
2018	50.6116146199408
2019	50.5988794813113
2020	50.5885579143489
2021	50.5807944371535
2022	50.5724425367881
2023	50.5630652671687