Year	% of working-age population
1960	64.62845955326154
1961	65.50840317502549
1962	67.30478663754943
1963	69.24246547786679
1964	72.71810465123365
1965	77.19458633541961
1966	80.1307413283477
1967	80.53780233336396
1968	79.34817404220446
1969	79.24833800026668
1970	79.10205007943112
1971	78.98001291916741
1972	78.96792486488009
1973	77.77658270053993
1974	77.39285693065483
1975	78.62403963056065
1976	81.28691748645286
1977	84.91681676296221
1978	88.78568344767176
1979	90.12827988338192
1980	90.43032629189273
1981	92.05931326760489
1982	93.68246209334885
1983	95.18496272479949
1984	96.46138611086458
1985	97.45708424969416
1986	98.16700238470315
1987	98.6190239718297
1988	98.8428398490351
1989	98.8594663634591
1990	98.61512313965737
1991	97.74117400199339
1992	96.43604684052724
1993	95.26417063339657
1994	94.10539556462976
1995	92.76259171924305
1996	91.31278221026996
1997	89.86482346373279
1998	88.54500755427148
1999	87.34744442186154
2000	86.18392871432539
2001	85.10792102008354
2002	84.21037807452385
2003	83.50456917178356
2004	82.93272061503608
2005	82.54629648579214
2006	82.32694435625598
2007	82.13380035931705
2008	81.8658743355869
2009	81.47535536455102
2010	81.00375011867465
2011	80.52782915852738
2012	80.04931481715592
2013	79.54294463538189
2014	78.97595378403736
2015	78.29456650238743
2016	77.48983058090664
2017	76.5016218886464
2018	75.35232173208658
2019	74.14214973386464
2020	72.90135848823512
2021	71.63147674277106
2022	70.292707000883
2023	68.90639143928617