Year	% of total population
1960	75.0928504832704
1961	74.354535239932
1962	73.69636764063462
1963	73.11450699532544
1964	72.51979275923891
1965	72.35923744246865
1966	72.19854363284918
1967	72.013902150623
1968	71.83360803608282
1969	71.66580427664543
1970	71.50347607939746
1971	71.32633613655113
1972	71.12037000470046
1973	70.84202089170898
1974	70.48972503590119
1975	70.11900956012597
1976	69.76283986788496
1977	69.39349378107961
1978	68.83729280376735
1979	68.09362186658363
1980	67.33703264814164
1981	66.55022372875513
1982	65.75796935946788
1983	65.046534477189
1984	64.31596827666453
1985	63.588940778055196
1986	62.869528800297935
1987	62.16021549089103
1988	61.453539936001064
1989	60.75434819436493
1990	60.0551869578865
1991	59.295629613440084
1992	58.51968294327986
1993	57.73449547069468
1994	56.943039374545904
1995	56.14274459620692
1996	55.335091722626196
1997	54.52082843386384
1998	53.692601795773164
1999	52.85187425840449
2000	51.99085883686485
2001	51.06069046233735
2002	50.07050073040355
2003	49.07010021786689
2004	48.05839782669436
2005	47.04459758252904
2006	46.05510461414852
2007	45.08110058257395
2008	44.10071160875588
2009	43.12128435149128
2010	42.14727880679718
2011	41.232940584745954
2012	40.348162902738245
2013	39.467634499421166
2014	38.58999101316142
2015	37.7159542441474
2016	36.8497347105606
2017	35.99531524057407
2018	35.15509169585757
2019	34.33546872575107
2020	33.540664695833335
2021	32.76880075177063
2022	32.02129094636631
2023	31.29232150054559