Year	% of total population
1960	50.0915787931305
1961	50.1036426937991
1962	50.1186245153186
1963	50.1337069303716
1964	50.1500037991361
1965	50.1653694937404
1966	50.1792917547065
1967	50.1961037556534
1968	50.2155999541592
1969	50.2353246579042
1970	50.3820437428496
1971	50.643562049865
1972	50.8779332363723
1973	51.0947761063342
1974	51.3061864712744
1975	52.0892632227306
1976	53.0867644545325
1977	53.4509553248015
1978	53.6530691088176
1979	53.7948824549622
1980	53.7860792433052
1981	53.6965517328067
1982	53.5652300807031
1983	53.4385252345189
1984	53.3241779845776
1985	53.2211646007573
1986	53.0614906027254
1987	52.8421007229929
1988	52.681897220966
1989	52.5232156891296
1990	52.3058739454379
1991	52.0948959550345
1992	51.7038880082402
1993	51.2431530084785
1994	51.0275937626365
1995	50.9732471953
1996	50.9290942044667
1997	50.8858057892141
1998	50.8894319576433
1999	50.8898054173601
2000	50.8491777390264
2001	50.8104996258771
2002	50.7747907362484
2003	50.7413680791948
2004	50.70625291796
2005	50.6691121778348
2006	50.6327266532564
2007	50.5976722503464
2008	50.5612925175532
2009	50.5404380131311
2010	50.5352792056995
2011	50.5306375067458
2012	50.5258868816716
2013	50.5222143694637
2014	50.5197715546772
2015	50.5164869869174
2016	50.5145352989878
2017	50.5116422917537
2018	50.5093216088273
2019	50.5096883922046
2020	50.5056090007477
2021	50.4969822514563
2022	50.5033146185419
2023	50.5184532434856