Year	% of total population
1960	55.51526136520866
1961	55.749830336138
1962	55.679120750534764
1963	55.163839770898626
1964	54.70671063801814
1965	54.50584687946783
1966	54.41842599252094
1967	54.527297768366395
1968	54.65431103670168
1969	54.70577592880264
1970	54.82160416974781
1971	54.92444960020696
1972	55.12927883158723
1973	55.33269740310566
1974	55.3417288233945
1975	55.31426846151232
1976	55.32887814086291
1977	55.71215390020495
1978	56.663047831642835
1979	57.65517748080746
1980	58.47976569983309
1981	59.23041793548247
1982	59.82786859384282
1983	60.51163290466974
1984	61.318762151645444
1985	62.054515728354005
1986	62.68412324840502
1987	63.154928000991234
1988	63.55176404234529
1989	63.8526545275305
1990	63.97956831565772
1991	64.10049848226451
1992	64.27792128708242
1993	64.4427617240075
1994	64.6646941117751
1995	64.95428860430714
1996	65.3084948911384
1997	65.75727606174723
1998	66.18296603175301
1999	66.56669785317975
2000	66.98779428980981
2001	67.4729272413073
2002	68.05257243474459
2003	68.63505471236166
2004	69.20285885319618
2005	69.7960164730618
2006	70.24922104950282
2007	70.51027060053664
2008	70.69359656386379
2009	70.81123910963429
2010	70.87180035839835
2011	70.87312106194534
2012	70.78370400647717
2013	70.62504815895291
2014	70.41907751430278
2015	70.18172383378759
2016	69.91310901725227
2017	69.55921270244048
2018	69.21663371935612
2019	68.94055768108457
2020	68.71476112355917
2021	68.59532684644829
2022	68.50488339192394
2023	68.44865510052115