Year	% of total population
1960	48.8539783796023
1961	48.8664848341388
1962	48.8808468401559
1963	48.8980310636332
1964	48.9179120832861
1965	48.9414498296013
1966	48.9691230510664
1967	48.9993758231519
1968	49.0321027983461
1969	49.0681940374817
1970	49.1045454345406
1971	49.1370412936217
1972	49.1656084273854
1973	49.189386237827
1974	49.2155641179279
1975	49.2490648583122
1976	49.2790796890801
1977	49.3135740747906
1978	49.3624685468139
1979	49.4191761741537
1980	49.4837478124271
1981	49.5603657636269
1982	49.685508517222
1983	49.7955417750259
1984	49.8442085091394
1985	49.8842374452941
1986	49.9221483066474
1987	49.9587244375585
1988	49.9924245163812
1989	50.0247976760776
1990	50.0570954937819
1991	50.0936861203592
1992	50.1333036778073
1993	50.1707406974951
1994	50.1982234432543
1995	50.2169140671364
1996	50.2350339668028
1997	50.252393749471
1998	50.2688744095153
1999	50.2843982084361
2000	50.2990994976608
2001	50.3128020081947
2002	50.325789008431
2003	50.3391272139924
2004	50.3531081578621
2005	50.3669662876517
2006	50.3808488946726
2007	50.394484589832
2008	50.4074444697435
2009	50.4197192997663
2010	50.430756919371
2011	50.4402649875252
2012	50.4483119260015
2013	50.4551548883066
2014	50.4606032682226
2015	50.4647272216853
2016	50.4678287476941
2017	50.4700754093062
2018	50.4714253429756
2019	50.471076860518
2020	50.478502271361
2021	50.4956219113254
2022	50.5102301581021
2023	50.5182006702842