Year	% of working-age population
1960	81.61693319209071
1961	81.66178615785104
1962	81.7388451862881
1963	81.74600348915868
1964	81.59862936970775
1965	81.20331496633617
1966	80.60304848192924
1967	79.79601624822591
1968	78.69712921883571
1969	77.13541154860802
1970	74.88448686292195
1971	72.50059954957148
1972	70.55994140721283
1973	68.76164897970412
1974	66.8088254785277
1975	64.70039781203381
1976	62.57829542410287
1977	60.556674260035294
1978	58.81788637878091
1979	57.55335312648059
1980	56.80486058345085
1981	56.5515159356536
1982	56.697225538688954
1983	57.06076134699853
1984	57.4846663446855
1985	57.865767879697415
1986	58.040042581067794
1987	57.84478103187525
1988	57.33622226532299
1989	56.63643739342314
1990	55.76416486371496
1991	54.68562336003182
1992	53.39895922806066
1993	51.86544251827636
1994	50.065333284758395
1995	48.052016206461836
1996	45.87067891695466
1997	43.61878148325183
1998	41.418362580752884
1999	39.37278405651529
2000	37.45055821545395
2001	35.63766222641024
2002	34.02831972112078
2003	32.672871788486276
2004	31.569517659327307
2005	30.694314145440032
2006	30.020726792767206
2007	29.5071569042344
2008	29.143399791278195
2009	28.891531705935126
2010	28.739888489518485
2011	28.69081024287501
2012	28.700309135817815
2013	28.731063795195766
2014	28.741839968807543
2015	28.72476060613064
2016	28.683952026973774
2017	28.602419691280765
2018	28.201084203585776
2019	27.9679316214335
2020	27.971787762743915
2021	27.728932761507615
2022	27.428313431502115
2023	27.090533825773328