Year	% of working-age population
1960	88.2723128448271
1961	89.43654783044721
1962	90.52569193516702
1963	91.48724275634224
1964	92.4349755406453
1965	93.34601821442223
1966	94.12566705477755
1967	94.7518371938478
1968	95.12618681494175
1969	95.11232705817794
1970	94.28748526543491
1971	92.60255935558948
1972	90.47674938726622
1973	88.17431749975066
1974	85.82919267091631
1975	83.40740068532297
1976	80.94592456042052
1977	78.52815799142066
1978	76.21388396767587
1979	74.05474392300695
1980	71.99923939730988
1981	69.88329559310225
1982	67.82190521924704
1983	66.04900165874524
1984	64.58492648918539
1985	63.381430032084054
1986	62.354287125548424
1987	61.4528110578518
1988	60.66921394653566
1989	60.0279188428121
1990	59.47939472940422
1991	58.89139043406338
1992	58.320069394723795
1993	57.86253766671497
1994	57.46557129656903
1995	56.93607243236
1996	56.249126085450875
1997	55.532219736310246
1998	54.773073713632066
1999	53.979302105281576
2000	53.15498349338904
2001	52.28920872309711
2002	51.4086353676497
2003	50.47502153824366
2004	49.55978195399897
2005	48.691515080848006
2006	47.76016024685452
2007	46.800800890375335
2008	45.88708070151806
2009	45.02584997363472
2010	44.05276095753761
2011	42.987909602236655
2012	42.000123865528224
2013	41.122728525512834
2014	40.34530747151431
2015	39.6069413601762
2016	38.913123900175975
2017	38.29919550460182
2018	37.527120345545896
2019	36.91678868267344
2020	36.5216071523175
2021	36.0571578129829
2022	35.636681400059324
2023	35.19001451183702