Year	% of working-age population
1960	64.1058532318109
1961	62.9597496591048
1962	61.97823518803469
1963	61.74725536737089
1964	62.06005186679743
1965	62.39205387433046
1966	63.95920082197365
1967	66.94686963664086
1968	69.45018493234136
1969	70.9259711023257
1970	71.69197078737558
1971	72.09646919250197
1972	71.76841452510257
1973	70.32043252084391
1974	68.71608469328616
1975	67.26321244422984
1976	65.69158168149406
1977	63.93301500360039
1978	61.7645906751958
1979	59.49381603216146
1980	57.30647667093318
1981	55.03967829339083
1982	52.460974365400226
1983	49.84795537053896
1984	47.493230042799865
1985	45.30248210585301
1986	43.35697413192568
1987	41.5245392840177
1988	40.076415646659235
1989	39.21489611813437
1990	38.661447839057836
1991	38.42780440104448
1992	38.45559087926818
1993	38.5697304021823
1994	38.68939613523538
1995	38.70810873292418
1996	38.59391734418775
1997	38.41278999073695
1998	38.1934556126903
1999	37.937445278495865
2000	37.60701144792936
2001	37.2026597628062
2002	36.74030260658376
2003	36.264455480688845
2004	35.801427524305865
2005	35.264778557212104
2006	34.60805712517806
2007	33.87518857845777
2008	33.122319236806206
2009	32.378819254991754
2010	31.596405022220374
2011	30.799381152656714
2012	30.09370049781731
2013	29.48233734943932
2014	28.949881421982475
2015	28.529886170762197
2016	28.125671538615705
2017	27.73184909490173
2018	27.458323898849564
2019	27.289242576164934
2020	27.20637414461398
2021	27.18767305704314
2022	27.235306660233277
2023	27.326866680705088