Year	% of total population
1960	50.583070455523035
1961	49.78240254657565
1962	48.96913459398681
1963	48.15269337592156
1964	47.33139393717896
1965	46.56473710218134
1966	45.798411171408596
1967	45.03296142128139
1968	44.26657197348158
1969	43.50472070654449
1970	42.74893199684813
1971	41.98778349842987
1972	41.23349947974869
1973	40.501750293051884
1974	39.77541659083108
1975	39.049655870835565
1976	38.328031448195624
1977	37.60653977633532
1978	36.88721107937994
1979	36.17489517482196
1980	35.46472554402736
1981	34.77218809792419
1982	34.11362088117316
1983	33.476073426816896
1984	32.8463606234546
1985	32.22422244477619
1986	31.61772427779186
1987	31.023789859352448
1988	30.438778386982797
1989	29.865407639512497
1990	29.307268226477497
1991	28.784949233964937
1992	28.285489873401193
1993	27.79780309738425
1994	27.303841906827323
1995	26.81475963718663
1996	26.3475594866036
1997	25.871558298072266
1998	25.400860735696828
1999	24.946596022865446
2000	24.497632304164775
2001	24.13927485806507
2002	23.81007491286888
2003	23.48897669705832
2004	23.180869166754167
2005	22.877544989381107
2006	22.57704709103643
2007	22.280313098105225
2008	21.98998973952382
2009	21.706867360645703
2010	21.430950391376637
2011	21.151059316146945
2012	20.879491189982875
2013	20.613665785428555
2014	20.350403922226533
2015	20.08991932286243
2016	19.83424775293808
2017	19.585607412712303
2018	19.349351159409384
2019	19.11120245309275
2020	18.86548684460373
2021	18.62304244433336
2022	18.378868573102285
2023	18.131526861432356
