Year	% of total population
1960	50.863752019846196
1961	50.046162591633816
1962	49.215722083883556
1963	48.38245958589604
1964	47.54431670510411
1965	46.7635398500038
1966	45.983116741556714
1967	45.20366855400655
1968	44.42345241177086
1969	43.64780141886121
1970	42.877266626021026
1971	42.115013362680266
1972	41.363161138946275
1973	40.63422325371932
1974	39.91057153920909
1975	39.18684670224152
1976	38.46676005882261
1977	37.74590452276824
1978	37.026965044853355
1979	36.31468479736095
1980	35.61208462665195
1981	34.94818023279889
1982	34.311392819230534
1983	33.69176675129248
1984	33.07691390400919
1985	32.46648667842196
1986	31.869283165177606
1987	31.282242451436105
1988	30.70193270512497
1989	30.131318145381854
1990	29.572365180727232
1991	29.038652103633645
1992	28.52473555325256
1993	28.02363004387338
1994	27.51638913472798
1995	27.01446435873409
1996	26.535738679930265
1997	26.048844466698235
1998	25.56805070881827
1999	25.10415644131591
2000	24.6452423663369
2001	24.278691440674184
2002	23.942331841351862
2003	23.613111414577812
2004	23.29598439115173
2005	22.98378082699652
2006	22.674383161671688
2007	22.36889190962362
2008	22.070200972410365
2009	21.77912631428333
2010	21.495728058768794
2011	21.207829918165405
2012	20.92876290127201
2013	20.65508802965565
2014	20.383643396012687
2015	20.115278098017594
2016	19.85196914567087
2017	19.596060050385844
2018	19.352308828967878
2019	19.109803629400794
2020	18.861640532891062
2021	18.615200497175866
2022	18.366860903693308
2023	18.115994603719358
