Year	% of working-age population
1960	73.40729894849967
1961	73.60402586016275
1962	74.15917638768894
1963	75.2960317656991
1964	76.23617937759336
1965	76.6582769786065
1966	76.85213630528746
1967	76.71327290857866
1968	76.48611629743192
1969	76.30957660091755
1970	75.99060199615249
1971	75.66686642838141
1972	75.17832409979536
1973	74.66150095399738
1974	74.39417472982655
1975	74.15158667762981
1976	73.84374323863501
1977	73.00862092041031
1978	71.38590368255026
1979	69.756105052428
1980	68.4027524766604
1981	67.18447103424587
1982	66.21574669517399
1983	65.18530026593184
1984	64.0396850466229
1985	62.989582788154685
1986	62.051898140880716
1987	61.285274881302136
1988	60.57132562579531
1989	59.938922460346106
1990	59.48154880796924
1991	58.992992711429466
1992	58.451498410465796
1993	57.90191101522675
1994	57.23072463863616
1995	56.41883084065448
1996	55.47918005246779
1997	54.40204353693304
1998	53.32007539355932
1999	52.27613480226422
2000	51.21423349207174
2001	50.11733013228269
2002	48.97597841920432
2003	47.86746915608123
2004	46.79694104460482
2005	45.73600605905919
2006	44.82056736838014
2007	44.09949745505913
2008	43.49020962753494
2009	42.96424072900694
2010	42.49081812596792
2011	42.07664077576037
2012	41.74272833913168
2013	41.45837967593665
2014	41.1963485693924
2015	40.92668564559688
2016	40.650030591257
2017	40.398730283061134
2018	40.12015576650718
2019	39.78326710995396
2020	39.38559014083207
2021	38.933868636819525
2022	38.48418752521134
2023	37.9760046003821