Year	% of total population
1960	49.7962351112541
1961	49.8152006245792
1962	49.8347280933843
1963	49.8549412362683
1964	49.8755168758259
1965	49.8959936887079
1966	49.9163831817578
1967	49.9363237963517
1968	49.9551515981656
1969	49.972533701996
1970	49.9885244159195
1971	50.0033332690194
1972	50.0167297963221
1973	50.0285314755756
1974	50.0393813905232
1975	50.0493959702408
1976	50.0580437370431
1977	50.0649322862457
1978	50.0697899279176
1979	50.0728772219656
1980	50.0741379715425
1981	50.0736877968484
1982	50.0719863541196
1983	50.0685303278483
1984	50.062469866533
1985	50.0550462281928
1986	50.043596314979
1987	50.0253275425376
1988	50.0013261145353
1989	49.972767383586
1990	49.9413414635381
1991	49.9081467204815
1992	49.874376230865
1993	49.8416324724138
1994	49.8109119470064
1995	49.7819063671798
1996	49.7539935292015
1997	49.7267184715971
1998	49.6999294810562
1999	49.6738307830396
2000	49.6489046894777
2001	49.6252473305868
2002	49.6032980628639
2003	49.583842850183
2004	49.566258073445
2005	49.5497921173711
2006	49.5327767037595
2007	49.5142124123303
2008	49.495533673353
2009	49.478735991675
2010	49.4642082708298
2011	49.4498840062302
2012	49.4347425999811
2013	49.4191370591201
2014	49.4035866658831
2015	49.3898733880637
2016	49.3805657020421
2017	49.3769305304878
2018	49.3761252849988
2019	49.3735440321422
2020	49.3604186805976
2021	49.3341189965278
2022	49.3033025546659
2023	49.2821046482945