Year	% of total population
1960	20.316397944088884
1961	20.627671017222266
1962	20.937972509972976
1963	21.183736313309375
1964	21.405798626389394
1965	21.632473276522955
1966	21.87075782518312
1967	22.123259468482562
1968	22.391368472909402
1969	22.67033300185723
1970	22.961556999435814
1971	23.255554378500975
1972	23.540555889570843
1973	23.75323247495316
1974	23.951864028379784
1975	24.151865571577183
1976	24.357297284864934
1977	24.560953292455906
1978	24.764205623775375
1979	24.9584002213765
1980	25.13462547809096
1981	25.28749258290158
1982	25.429362932000032
1983	25.63563403081289
1984	25.843743782527202
1985	26.048635864028206
1986	26.255388092552668
1987	26.466348404006368
1988	26.68419329020088
1989	26.911427362419545
1990	27.15471910070839
1991	27.413701932535446
1992	27.69375441162614
1993	28.213748477612295
1994	28.805501567080828
1995	29.430091810951414
1996	30.092440978806813
1997	30.789020749896906
1998	31.52854838142936
1999	32.31715045132034
2000	33.17236615891389
2001	34.124129504114045
2002	35.20005251099402
2003	36.38605603246175
2004	37.648449391136865
2005	38.9728966027726
2006	40.37151232908888
2007	41.84229568284901
2008	43.37725069387021
2009	44.133982303429995
2010	44.843119134530255
2011	45.49720659301885
2012	46.13861951114594
2013	46.7709917257943
2014	47.40139960441465
2015	48.03287498280174
2016	48.67131617308547
2017	49.32715528391272
2018	50.00830316258927
2019	50.21664538548545
2020	50.411176221294376
2021	50.63261890757763
2022	50.9135133253814
2023	51.162263660376325