Year	% of total population
1960	54.1937730506334
1961	53.4358139053817
1962	52.7546021931472
1963	52.0538128941628
1964	51.6650791201311
1965	51.5462734462431
1966	51.3821574384427
1967	51.3361169601862
1968	51.4202047107074
1969	51.581036996294
1970	51.8179303206955
1971	52.0494342705055
1972	52.3862571097598
1973	52.7667705365016
1974	53.1465756735254
1975	53.5477222125895
1976	53.7813385047104
1977	54.0023776689334
1978	54.3518906300486
1979	54.5555710899005
1980	54.6592701126473
1981	54.7330561012509
1982	54.73589616422
1983	54.7457651244041
1984	54.7902345415278
1985	54.8587801871296
1986	54.9697847266157
1987	55.1478384332945
1988	55.4125922189921
1989	55.722456115458
1990	56.0459826908867
1991	56.401455583932
1992	56.7996717522406
1993	57.2562104165263
1994	57.7808005830313
1995	58.3927601729958
1996	59.1060835924734
1997	59.8941233511744
1998	60.7330862921112
1999	61.5882167454828
2000	62.4262418890097
2001	63.2433133488753
2002	64.0239041769489
2003	64.7727339046443
2004	65.5023273161894
2005	66.2225252215651
2006	66.948265749226
2007	67.6469259432338
2008	68.2733757738757
2009	68.807091943499
2010	69.2263687554607
2011	69.5172458232788
2012	69.6925747199575
2013	69.7627580422877
2014	69.6980666084667
2015	69.5570272703589
2016	69.4575874800272
2017	69.3563953175271
2018	69.224764220404
2019	69.0674366561731
2020	68.8794569159397
2021	68.7017158657313
2022	68.4929044881527
2023	68.2565741392155