Year	% of total population
1960	54.0432912295004
1961	54.1849844614568
1962	54.3060372650683
1963	54.3622804814471
1964	54.3351706806162
1965	54.2627662150121
1966	54.1717515278689
1967	54.0742866067511
1968	53.9724385459784
1969	53.850252941021
1970	53.7055522718567
1971	53.5132582743396
1972	53.2993831242417
1973	53.1159270364741
1974	52.9519199250388
1975	52.7980228619921
1976	52.6434985290223
1977	52.5034749500175
1978	52.5982787255299
1979	52.8215989338588
1980	52.8688484924184
1981	52.8118594427645
1982	52.7535940531594
1983	52.6999302710637
1984	52.706242532698
1985	52.7015799421891
1986	52.6411016981742
1987	52.5920262343159
1988	52.5467361138693
1989	52.5004822920326
1990	52.4962479722669
1991	52.4726526376851
1992	52.3233622608504
1993	52.2380301915994
1994	52.6846054217836
1995	52.8441983092766
1996	52.1824227428955
1997	51.4806229328532
1998	51.1362202647886
1999	51.0134082897945
2000	50.9259350106673
2001	50.9037142509827
2002	50.9044589898026
2003	50.8601094814395
2004	50.8260767777323
2005	50.8309287387456
2006	50.8375318500226
2007	50.8314908044731
2008	50.7919488928176
2009	50.7275382170707
2010	50.7237556896987
2011	50.7755082207634
2012	50.7650099275162
2013	50.7291544335388
2014	50.7027462541439
2015	50.6728891253646
2016	50.6831291652262
2017	50.6843054137207
2018	50.62489726551
2019	50.5427200821721
2020	50.505358382266
2021	50.5125947844236
2022	50.5420804472169
2023	50.6048281472731