Year	% of working-age population
1960	71.58051179616457
1961	71.83946153228736
1962	72.31924443280907
1963	73.26937827731427
1964	74.01601216424503
1965	74.30505678827637
1966	74.40584316011898
1967	74.21692782379223
1968	73.96724114621234
1969	73.76702664362321
1970	73.44056875437451
1971	73.12752619296509
1972	72.69833396308286
1973	72.24877993573067
1974	72.01637603706601
1975	71.81741715613418
1976	71.5773341547958
1977	70.89960444126645
1978	69.54951080191812
1979	68.20482155312305
1980	67.10420819740808
1981	66.1128675570115
1982	65.32652900301817
1983	64.48342188241682
1984	63.541040745323485
1985	62.67679988476422
1986	61.90664309001363
1987	61.285390949106755
1988	60.70762872523886
1989	60.19327226625732
1990	59.806400063915895
1991	59.39556833422266
1992	58.93834455482272
1993	58.47626813520871
1994	57.87980960317506
1995	57.14655014717955
1996	56.31922713770713
1997	55.35977894370801
1998	54.36535929504031
1999	53.39014172405447
2000	52.400235728397945
2001	51.37826475704242
2002	50.32720551705083
2003	49.32168784503121
2004	48.35949271762206
2005	47.40921161963411
2006	46.5949651874213
2007	45.96609298411265
2008	45.446365693798455
2009	45.004131160595
2010	44.60902557079087
2011	44.26965584446898
2012	44.0158206101199
2013	43.816396552046236
2014	43.63650668258028
2015	43.444597866969815
2016	43.23803591903297
2017	43.0470348874866
2018	42.82450804657142
2019	42.54216297938075
2020	42.200665972012295
2021	41.80952633543116
2022	41.410636711005864
2023	40.94631534160364