Year	% of total population
1960	40.328308851740715
1961	40.24444066179492
1962	40.3592716154098
1963	40.799586604640034
1964	41.177732046521356
1965	41.336775785960775
1966	41.39532652857892
1967	41.29468421845455
1968	41.16440099283009
1969	41.07717663906376
1970	40.930994936859
1971	40.78076216186231
1972	40.54493882441046
1973	40.30260151390486
1974	40.19476612113593
1975	40.1111196779037
1976	39.99507777397156
1977	39.5886681878381
1978	38.7327507258919
1979	37.839659350203064
1980	37.08516601665549
1981	36.39124113499413
1982	35.828938989949854
1983	35.21410384470253
1984	34.50612013689794
1985	33.850160496937086
1986	33.27105607392515
1987	32.81490328838331
1988	32.40862926289307
1989	32.05948318048776
1990	31.823286447509798
1991	31.58709173557804
1992	31.305735105733383
1993	31.01975677429772
1994	30.67036230761282
1995	30.243502526158963
1996	29.74963515993947
1997	29.165213916650906
1998	28.577513498414437
1999	28.01313950185067
2000	27.41605335588106
2001	26.765227931034715
2002	26.047474727242086
2003	25.337537649082613
2004	24.65631432158746
2005	23.973270222157783
2006	23.400491052169386
2007	22.99165386026772
2008	22.676430805433768
2009	22.425803994599114
2010	22.212556484406708
2011	22.036749235191266
2012	21.92043470041002
2013	21.839112928703173
2014	21.774584438799973
2015	21.69677079974097
2016	21.6139692605786
2017	21.562727081907713
2018	21.474403820853972
2019	21.319973158817973
2020	21.10514560402272
2021	20.82717881989285
2022	20.52164249065871
2023	20.16734498873048