Year	% of total population
1960	65.8348408725866
1961	66.1255597151949
1962	66.3657488458827
1963	66.5212921826027
1964	66.546322409286
1965	66.4413328327156
1966	66.2357123830766
1967	65.9905420059564
1968	65.8017015218305
1969	65.6467279219043
1970	65.4603562426929
1971	65.2441697513798
1972	65.0099895715734
1973	64.7690061657324
1974	64.5044060263243
1975	64.2510886953147
1976	64.0709312907307
1977	63.9458266282963
1978	63.8936031589732
1979	63.9559736589781
1980	64.1008450373792
1981	64.2914342763214
1982	64.4873471999969
1983	64.6393158100788
1984	64.721958307618
1985	64.6642462204316
1986	64.5506824884261
1987	64.5078913305698
1988	64.4692451243998
1989	64.4019176054694
1990	64.2847136813994
1991	64.1145646342483
1992	63.9395900962377
1993	63.7789590476869
1994	63.6676236454558
1995	63.6426084822445
1996	63.6891883193585
1997	63.7807453766626
1998	63.9166448531726
1999	64.0995364835037
2000	64.3089508015602
2001	64.5258939263035
2002	64.7404518389623
2003	64.9492526730857
2004	65.1414871567771
2005	65.3631711390674
2006	65.5883962158307
2007	65.6964423526254
2008	65.647469103869
2009	65.4418258817236
2010	65.1038489225254
2011	64.6860445925552
2012	64.2424777389545
2013	63.8042116992844
2014	63.3980724407678
2015	63.057637771676
2016	62.7858682688394
2017	62.5723316024056
2018	62.408822295902
2019	62.288000546167
2020	62.22232112844
2021	62.1816870522935
2022	62.1512118238219
2023	62.1535954382578