Year	% of total population
1960	73.94854513808528
1961	73.37844035749859
1962	72.85269865651222
1963	72.37801611622312
1964	71.8942641724794
1965	71.67180602839208
1966	71.46030073964553
1967	71.23414009669658
1968	71.01253780770044
1969	70.80217467101367
1970	70.59854145559336
1971	70.38433537536805
1972	70.1272275248666
1973	69.82619033519074
1974	69.47794329782562
1975	69.11700711159313
1976	68.75956527814263
1977	68.3947332283344
1978	67.92597435557315
1979	67.35051535718668
1980	66.76931103293973
1981	66.17622370844961
1982	65.60354378568088
1983	65.08209931940002
1984	64.54623983874242
1985	64.01237320661009
1986	63.48381153780517
1987	62.96292165569605
1988	62.445089739350244
1989	61.94380778064044
1990	61.458558127747324
1991	60.95325210286694
1992	60.45010689809615
1993	59.94578307751968
1994	59.437365753337325
1995	58.92927924541255
1996	58.41892073214449
1997	57.90264018738594
1998	57.37737680141851
1999	56.84643569755099
2000	56.30504446121754
2001	55.71464515554708
2002	55.071816581735305
2003	54.42075763946522
2004	53.759955502903374
2005	53.09279937253502
2006	52.43676910095665
2007	51.78893621096177
2008	51.13553687586149
2009	50.48120194491009
2010	49.830395360650336
2011	49.20629297760482
2012	48.59171157683642
2013	47.968590207733484
2014	47.33766746368165
2015	46.70957161287459
2016	46.090518067216024
2017	45.47674061150685
2018	44.869565127273255
2019	44.27055337389633
2020	43.68259388905527
2021	43.10048094188398
2022	42.53685869507774
2023	41.97573196120786
