Year	% of total population
1960	46.96090860067549
1961	47.56988558352403
1962	46.66511120802442
1963	46.3040773434216
1964	45.82234343434343
1965	45.55263363246196
1966	45.719627234689995
1967	45.08032786885246
1968	45.45315733143061
1969	45.59054570733403
1970	45.407061197041024
1971	45.302443792766375
1972	45.476016518424395
1973	44.98367907260525
1974	44.97885697364525
1975	45.287554269175104
1976	45.62473818284744
1977	45.958870744533634
1978	46.3589701897019
1979	46.54944532488114
1980	46.822227952552865
1981	47.28733569261881
1982	47.81448772016869
1983	48.37744214372716
1984	49.17335898052416
1985	49.72263170328372
1986	50.389602233077454
1987	51.03138017853056
1988	51.66233678523188
1989	52.27698096502878
1990	52.16714592274678
1991	50.55881996362902
1992	51.16363458910794
1993	53.11978711271621
1994	55.211020559362844
1995	57.35704238052299
1996	58.39618763176387
1997	58.279952021932836
1998	58.28943225590353
1999	58.14829387755102
2000	57.95423755764032
2001	57.92259667650256
2002	58.09226788432268
2003	58.18171218440289
2004	58.09170215890733
2005	58.00271280356705
2006	57.912996016275144
2007	57.81933399256278
2008	57.72753393169877
2009	57.2814203270279
2010	57.161878902355845
2011	57.03111076772516
2012	56.90368497566526
2013	56.94838389478255
2014	57.15290236985284
2015	57.32559277335593
2016	57.51544582260707
2017	57.717558215601436
2018	57.93015715765299
2019	57.85075104926
2020	57.82803225141344
2021	57.82221439699511
2022	57.62525765105938
2023	57.34811975360522
