Year	% of total population
1960	55.9062523354985
1961	55.7335350396823
1962	55.5448121776515
1963	55.3526865940595
1964	55.1715970055593
1965	55.0025461086063
1966	54.8401083541762
1967	54.68270035106
1968	54.5430886881182
1969	54.4313879601899
1970	54.3416781582155
1971	54.2757757728783
1972	54.2346579946155
1973	54.208695694643
1974	54.196613522235
1975	54.1971444252582
1976	54.2048348845088
1977	54.2091480073541
1978	54.2083564907021
1979	54.2062856825424
1980	54.1975484800569
1981	54.185640082054
1982	54.1676311783934
1983	54.1389344341977
1984	54.1048122250633
1985	54.0582591115075
1986	54.0004428845649
1987	53.9421500792741
1988	53.891736388066
1989	53.8635354430925
1990	53.8578808362191
1991	53.8681370858287
1992	53.8987255542207
1993	53.9600945701013
1994	54.0519801999191
1995	54.1457291808925
1996	54.2157616718233
1997	54.262131139603
1998	54.2968732549606
1999	54.3299382488354
2000	54.3595273622483
2001	54.3867137381429
2002	54.4146879986794
2003	54.4290258383449
2004	54.4347262113515
2005	54.4504931807302
2006	54.4670320470908
2007	54.4718809698109
2008	54.4693761009518
2009	54.4585928847063
2010	54.4384805356098
2011	54.414739905266
2012	54.3763841303912
2013	54.318316739569
2014	54.256133272403
2015	54.184657785944
2016	54.1012913255596
2017	54.0175725959173
2018	53.9336546757386
2019	53.8494329669642
2020	53.7645778818925
2021	53.6800683487387
2022	53.6152413393989
2023	53.569888936303