Year	% of working-age population
1960	57.61313762394307
1961	59.232451036734126
1962	60.22718425437162
1963	60.37493772179447
1964	59.727330872204575
1965	58.29996440810385
1966	56.508563448829705
1967	54.7943725131892
1968	53.11665136972981
1969	51.447198265059605
1970	49.80092441284327
1971	48.21304032315033
1972	46.69491680213337
1973	45.219446486940726
1974	43.7964059947784
1975	42.47618707328039
1976	41.32005596922044
1977	40.42286438298494
1978	39.810657761993234
1979	39.505139217022176
1980	39.462449308807386
1981	39.56445089241577
1982	39.8111790674983
1983	40.289465416206426
1984	40.99462870859641
1985	41.7236511383416
1986	42.34670403608051
1987	42.81707282952352
1988	43.03364646936581
1989	42.91212387261553
1990	42.53356686033741
1991	42.04946046578312
1992	41.5292464961931
1993	40.93549633225141
1994	40.19347748809575
1995	39.262411050210126
1996	38.151626159494775
1997	36.939202418912174
1998	35.580838286401324
1999	34.044342679115026
2000	32.71523675080557
2001	31.637574192612032
2002	30.50025532179316
2003	29.390501349497743
2004	28.402123106254955
2005	27.51125215190924
2006	26.767697673753915
2007	26.178037007676018
2008	25.719281060360803
2009	25.43184096429246
2010	25.182887480933942
2011	24.89973268548722
2012	24.675220447358935
2013	24.60966778112467
2014	25.016312200544082
2015	25.832700129844255
2016	26.70760815693076
2017	27.52468376358642
2018	28.234004044757942
2019	28.844372845213357
2020	29.329364483704968
2021	29.744158787939096
2022	28.52317660808643
2023	27.90305485550086