Year	% of working-age population
1960	51.895246910661385
1961	51.22744634088807
1962	50.680120080385706
1963	50.32779499523278
1964	50.271254478655734
1965	50.508720972662125
1966	50.975974321044944
1967	51.536876286813204
1968	51.97176173217246
1969	52.330522853288194
1970	52.764221403627
1971	53.270393745584286
1972	53.82252467944093
1973	54.394847022889635
1974	55.02815505408821
1975	55.63938499885063
1976	56.077025945811535
1977	56.3823849643183
1978	56.510182923069884
1979	56.35754593958905
1980	56.00417185943402
1981	55.541726307635045
1982	55.0691866119077
1983	54.70460620041866
1984	54.507068148314545
1985	54.64496823350273
1986	54.917022378470946
1987	55.01980157445314
1988	55.112714037530466
1989	55.274870411757135
1990	55.557964770412624
1991	55.9708140753869
1992	56.39762864948242
1993	56.79151574639244
1994	57.06571085335602
1995	57.12742630695086
1996	57.01251696041032
1997	56.7871375186899
1998	56.45375859561348
1999	56.00737320566073
2000	55.4993374883447
2001	54.97653565260292
2002	54.4629354707066
2003	53.96637129417289
2004	53.51201327297679
2005	52.99135973053271
2006	52.46598333914844
2007	52.21524363428709
2008	52.32880591653837
2009	52.80747226265785
2010	53.60074922353064
2011	54.59285358330271
2012	55.66024068094715
2013	56.72946916844912
2014	57.733498157763265
2015	58.58507703748178
2016	59.27151122057624
2017	59.81504880718271
2018	60.23376157497262
2019	60.54457054597155
2020	60.714028479924096
2021	60.81905258628316
2022	60.89790650500993
2023	60.891728926524415