Year	% of total population
1960	49.7204392321155
1961	49.7188229617289
1962	49.7181825881057
1963	49.7182539021918
1964	49.7177534483667
1965	49.7170371276996
1966	49.7158473910351
1967	49.7143160674739
1968	49.7132228768593
1969	49.7124697256394
1970	49.701516054973
1971	49.6922937143041
1972	49.696157485249
1973	49.7168578619721
1974	49.7551765188357
1975	49.7963895598982
1976	49.8404069094643
1977	49.8781265229562
1978	49.9074494785581
1979	49.9362015242815
1980	49.954734643136
1981	49.9654980966236
1982	49.9794768496034
1983	49.9976469845869
1984	50.0209845187452
1985	50.0436176133524
1986	50.0617687552976
1987	50.077890375863
1988	50.0923083879108
1989	50.1059432598801
1990	50.1179310834874
1991	50.1272726934581
1992	50.1360422728128
1993	50.1443190027066
1994	50.1463312449043
1995	50.1438726363861
1996	50.1429460209744
1997	50.143281872391
1998	50.143913838232
1999	50.1429078106443
2000	50.13826402424
2001	50.1290343047241
2002	50.1152188499641
2003	50.0979733045326
2004	50.0784382656129
2005	50.0570126399838
2006	50.0344560555452
2007	50.0122113732237
2008	50.0523030036779
2009	50.1502137622915
2010	50.2371023427918
2011	50.3090927551692
2012	50.367600036424
2013	50.414578687191
2014	50.4456536811303
2015	50.4567176533706
2016	50.4442215068562
2017	50.4324534038173
2018	50.4348256226008
2019	50.4394489286642
2020	50.4592287059542
2021	50.4823468134258
2022	50.4925434046368
2023	50.4984801930817