Year	% of working-age population
1960	67.14851845906034
1961	70.08902404914227
1962	73.00670637554647
1963	76.09805514773834
1964	79.47293311768622
1965	82.91827519203692
1966	86.20924408980943
1967	89.1108420318244
1968	91.3090236879449
1969	92.47780588366753
1970	92.97043119136953
1971	93.31217554286842
1972	93.45884668112589
1973	93.3453724604966
1974	92.95471188564318
1975	92.21280781188398
1976	91.12044670371638
1977	89.69808881444013
1978	88.00371533849842
1979	86.23094618404085
1980	84.62194701342366
1981	83.26288450630722
1982	82.07301815813602
1983	81.0153127433169
1984	80.0960475748541
1985	79.33755514027452
1986	78.73449093899454
1987	78.17574692766038
1988	77.52195671892991
1989	76.61538888253261
1990	75.46329789254646
1991	74.19567924897706
1992	72.79280377519497
1993	71.21984491952257
1994	69.49431739680364
1995	67.68695564002046
1996	65.8691221153678
1997	64.01597958402013
1998	62.023105257283184
1999	59.86560228144865
2000	57.36338355516879
2001	54.64696706252445
2002	52.03538649516467
2003	49.517592018391056
2004	47.13515645384903
2005	44.992326643891595
2006	43.24816319095782
2007	42.04383085428354
2008	41.37936229813734
2009	41.189768610844915
2010	41.24689008265765
2011	41.30007135366958
2012	41.49104202403856
2013	41.99491513377991
2014	42.772655482662344
2015	43.793259456114235
2016	45.01358997419448
2017	46.40653010916659
2018	47.9460903521489
2019	49.50671010299968
2020	50.68172534630902
2021	51.35568896490658
2022	51.594022619768566
2023	51.2740454459505