Year	% of working-age population
1960	13.24620542482379
1961	13.455258593618757
1962	13.601504472500048
1963	13.724581016673447
1964	13.8757796882564
1965	14.06179918743458
1966	14.256186266183935
1967	14.466430077661652
1968	14.666631653735392
1969	14.830556137764496
1970	15.002039309059358
1971	15.1789448180892
1972	15.381139339673235
1973	15.590553676093469
1974	15.806117434632126
1975	16.02922026296162
1976	16.24902284968023
1977	16.485240441320887
1978	16.71423601059039
1979	16.903444460905998
1980	16.983738503645462
1981	16.930625003776303
1982	16.80632023591036
1983	16.659937783605734
1984	16.605576642276873
1985	16.697676544878846
1986	16.859930641872328
1987	17.03850042824814
1988	17.272863026295063
1989	17.527808614238435
1990	17.77960775393882
1991	18.068318618389018
1992	18.38136329341974
1993	18.687147307571593
1994	18.98475604249226
1995	19.268070866778377
1996	19.506534976201987
1997	19.70523510111564
1998	19.86494173154009
1999	19.996106734875394
2000	20.155317281787884
2001	20.37646437946568
2002	20.622575644255154
2003	20.86902801842491
2004	21.133644321354886
2005	21.409109629100787
2006	21.654536424266595
2007	21.83657248966819
2008	21.989660894409777
2009	22.16533404399986
2010	22.345059976421133
2011	22.64657553221147
2012	23.166475154581725
2013	23.77364152976912
2014	24.394029714475266
2015	24.962840219491184
2016	25.546385557344813
2017	26.147830159206503
2018	26.709982099652592
2019	27.31401512925284
2020	27.963376798570813
2021	28.590322518055725
2022	29.117978760169375
2023	29.730360219993827