Year	% of total population
1960	40.777959833678004
1961	40.84833096198653
1962	41.025118797442325
1963	41.38350089366713
1964	41.67610216346285
1965	41.80224526312874
1966	41.85435961641025
1967	41.80194528794827
1968	41.72084484961273
1969	41.65525885339112
1970	41.54565932914555
1971	41.433304140311094
1972	41.26666540229542
1973	41.087571918685
1974	40.983226881385235
1975	40.88513381340077
1976	40.76642136202909
1977	40.47884958978675
1978	39.932009869526496
1979	39.37353615285102
1980	38.90353123885966
1981	38.47843246592985
1982	38.13671225191382
1983	37.76957719359922
1984	37.35539850805116
1985	36.96808032307366
1986	36.615669897458616
1987	36.32175357914814
1988	36.0426858813842
1989	35.78833332703738
1990	35.59739467955195
1991	35.393116336667525
1992	35.16453719385821
1993	34.92742023787527
1994	34.641341420486185
1995	34.29821108506938
1996	33.90142903888928
1997	33.44565286632657
1998	32.98013628016865
1999	32.5238674460984
2000	32.05558112007792
2001	31.56656548650727
2002	31.051777204630863
2003	30.54553825632438
2004	30.052785129573685
2005	29.559881665940512
2006	29.126182289803637
2007	28.778242090618793
2008	28.48131180328664
2009	28.22059987818537
2010	27.9807000035724
2011	27.762338315508348
2012	27.574971587339913
2013	27.405327448619932
2014	27.238181840693024
2015	27.057237537351728
2016	26.867315855508956
2017	26.6833289857254
2018	26.481347386176502
2019	26.25007692123591
2020	25.991681909892854
2021	25.718229658472765
2022	25.445660818624596
2023	25.134542480312472