Year	% of total population
1960	77.85673650552104
1961	77.42299269827994
1962	76.97670779103116
1963	76.51869635111206
1964	76.05212015773921
1965	75.5828449035226
1966	75.11869966529684
1967	74.74304918068475
1968	74.36313695070977
1969	73.96209542044227
1970	73.57503798204709
1971	73.2282685229398
1972	72.90523462029311
1973	72.59830611214264
1974	72.38077572547411
1975	72.19078807862807
1976	71.98153864771461
1977	71.81874779157363
1978	71.66188476231495
1979	71.50258953757277
1980	71.3339433863303
1981	71.13471842446954
1982	70.92474803250006
1983	70.70093111686757
1984	70.46677284639142
1985	70.23540705203933
1986	70.00714583677352
1987	69.60516713088299
1988	69.18940154002297
1989	68.7905664036908
1990	68.41308910661435
1991	68.05696777454905
1992	67.72338575689632
1993	67.40119840043403
1994	67.08835293331344
1995	66.7988824710826
1996	66.4672843179599
1997	66.23432388606541
1998	66.01472948102014
1999	65.79168457156587
2000	65.54032908543225
2001	65.2955592931475
2002	65.0878782839024
2003	64.88275308547597
2004	64.66134201683022
2005	64.4396759088035
2006	64.19803919410423
2007	63.94281790665018
2008	63.655626602816064
2009	63.36732237828015
2010	63.1017102008733
2011	62.86016455017952
2012	62.62920515133923
2013	62.402152104037334
2014	62.17750730841955
2015	61.955902242963596
2016	61.74023973457714
2017	61.53145521991834
2018	61.32297727296268
2019	61.11720555347446
2020	60.905176407062605
2021	60.687711532246325
2022	60.446297212714256
2023	60.17846454120807