Year	% of total population
1960	49.910514824009
1961	49.9062024280836
1962	49.9000289425311
1963	49.8909704444482
1964	49.8800792561419
1965	49.8685434871771
1966	49.8571686382977
1967	49.8455008582541
1968	49.8331531802382
1969	49.8218804106051
1970	49.8129819269972
1971	49.8062744354168
1972	49.8013764410701
1973	49.7986394690822
1974	49.7984772847952
1975	49.8006390901288
1976	49.8048857498358
1977	49.8114219648387
1978	49.8210902141373
1979	49.834154716084
1980	49.8500308924227
1981	49.8669150354358
1982	49.8818981164495
1983	49.8940149965385
1984	49.9048849396266
1985	49.9150705584392
1986	49.9240620685687
1987	49.9313527777806
1988	49.9388262316549
1989	49.9484077057354
1990	49.9987705602968
1991	50.0715679084076
1992	50.1450551835982
1993	50.2336589732755
1994	50.3241306391178
1995	50.4043595645551
1996	50.4766579900821
1997	50.5546826492363
1998	50.6267651468453
1999	50.6889737913273
2000	50.7307679153101
2001	50.7503500555822
2002	50.7637796550684
2003	50.7776253024301
2004	50.7921601032203
2005	50.8080112595668
2006	50.8255479815333
2007	50.8439179912883
2008	50.8636235087034
2009	50.8843337066013
2010	50.9138260310396
2011	50.9518249324151
2012	50.9901055168323
2013	51.0293150184305
2014	51.0699076769163
2015	51.1120722751203
2016	51.1577804914827
2017	51.2058994105379
2018	51.2548285971216
2019	51.3048978973019
2020	51.3548177740608
2021	51.4057639586921
2022	51.4539207551554
2023	51.4970840561211