Year	% of total population
1960	64.2111806312336
1961	64.5364277455795
1962	64.8071473179747
1963	64.9335093996512
1964	64.9096924523261
1965	64.8167944347936
1966	64.6612576132573
1967	64.4966146510131
1968	64.4145201853676
1969	64.3877228610112
1970	64.36007498329
1971	64.3043255798032
1972	64.2115887576533
1973	64.1107730912208
1974	64.0101140889497
1975	63.9233502415137
1976	63.916491247
1977	63.9846594388154
1978	64.1307671077897
1979	64.3791672823779
1980	64.7283598280522
1981	65.1876903776316
1982	65.6419770763019
1983	65.9826262215862
1984	66.2526062647203
1985	66.440675681694
1986	66.593353594945
1987	66.8233750225397
1988	67.0428358206335
1989	67.1937190417477
1990	67.3438687981735
1991	67.4505193061701
1992	67.4638665597263
1993	67.4531754404864
1994	67.4270654251281
1995	67.3597925120862
1996	67.2540041086319
1997	67.1185037503921
1998	66.9726430989139
1999	66.8271817234082
2000	66.6872602705099
2001	66.5678496202536
2002	66.4706061709741
2003	66.3841518951218
2004	66.3107187292382
2005	66.2451799818351
2006	66.1765879310489
2007	66.0713444952134
2008	65.9019552220335
2009	65.6849457843839
2010	65.4207280202297
2011	65.1101162550466
2012	64.8155106281343
2013	64.6004286462552
2014	64.4511762137204
2015	64.3283502964883
2016	64.2065501203202
2017	64.0707289310823
2018	63.9327769883777
2019	63.8079424722191
2020	63.6842452186807
2021	63.5661192942108
2022	63.4533248819353
2023	63.333929969871