Year	% of working-age population
1960	34.965165580231236
1961	35.36301502791853
1962	35.41152702925397
1963	35.23666154042392
1964	34.85936809531764
1965	34.475881781497534
1966	34.06764918951094
1967	33.6786948672538
1968	33.52215198843504
1969	33.4358590826809
1970	33.34726122463948
1971	33.36455348044179
1972	33.38549203953608
1973	33.28175696307974
1974	33.051895774373826
1975	32.79308882764469
1976	32.637284483665574
1977	32.603264203170994
1978	32.656997905863584
1979	32.75462771500885
1980	32.876609532503146
1981	33.02803745941625
1982	33.18220627983934
1983	33.3254160816419
1984	33.36504310640468
1985	33.29105997172148
1986	33.25769575736637
1987	33.32354753572301
1988	33.48299326289189
1989	33.64723306645917
1990	33.663580121958034
1991	33.468107489661655
1992	33.06432156431563
1993	32.54040751462413
1994	32.01657240453622
1995	31.465624414764903
1996	30.783051258576815
1997	29.97866958008987
1998	29.018187049983325
1999	27.513835106623418
2000	26.170774900379364
2001	25.38954842767966
2002	24.58715223095708
2003	23.74700105769148
2004	22.955717968445665
2005	22.337299918037406
2006	22.008559612523513
2007	21.915016533427234
2008	21.99895457252957
2009	22.264349412309052
2010	22.630869069014796
2011	23.035637781693428
2012	23.429627046009436
2013	23.824246551900373
2014	24.234107417022262
2015	24.601530347691632
2016	24.978902755217895
2017	25.330131060081605
2018	25.58605485142238
2019	25.81486032487872
2020	25.990511604051804
2021	26.075918949045153
2022	26.035512008715646
2023	25.88687721129527