Year	% of working-age population
1960	80.89194767173875
1961	81.44072005661839
1962	81.86072883405383
1963	82.12746429178682
1964	82.21444658683967
1965	82.15739635808369
1966	82.00291037730142
1967	81.73346760035732
1968	81.3460949491225
1969	80.8572851294741
1970	80.27029724535554
1971	79.54431747270233
1972	78.69923438437584
1973	77.80896708309736
1974	76.88433054465176
1975	75.94001383434734
1976	75.00123712886925
1977	74.05869722183051
1978	73.11175543997732
1979	72.17258500213916
1980	71.24452658373731
1981	70.34595712861919
1982	69.4973963536353
1983	68.68471069506813
1984	67.8808102435475
1985	67.06966281369017
1986	66.23389406740505
1987	65.36658711674015
1988	64.47547957585876
1989	63.57042827705048
1990	62.6335922872137
1991	61.66164327332331
1992	60.67350519287667
1993	59.673459115450825
1994	58.65737137102932
1995	57.63013461560015
1996	56.58626690150172
1997	55.52144246114562
1998	54.457780201470975
1999	53.40458549916504
2000	52.366345311689685
2001	51.34234355444116
2002	50.32016937792154
2003	49.2986147392127
2004	48.28591389039498
2005	47.295756358394804
2006	46.33002732316174
2007	45.389142468750926
2008	44.46918313528907
2009	43.56889711614508
2010	42.69273075312345
2011	41.854026601674356
2012	41.05042068652898
2013	40.2604217882392
2014	39.50438463442343
2015	38.79630212792092
2016	38.12352810348948
2017	37.488874404667776
2018	36.898266433866084
2019	36.325135667681366
2020	35.75674139911777
2021	35.20645716346791
2022	34.66142882797532
2023	34.10978977335049