Year	% of working-age population
1960	8.394096935817611
1961	8.26516928128668
1962	8.106931098380182
1963	7.9237172632152815
1964	7.732832893975439
1965	7.5473173336384525
1966	7.365209711600644
1967	7.185708772639108
1968	7.010354827066921
1969	6.841360350862888
1970	6.674221991772581
1971	6.5163459658872505
1972	6.373212885132869
1973	6.235863393077671
1974	6.098766796504376
1975	5.957282347993134
1976	5.810839177362862
1977	5.657265310151364
1978	5.50139361271073
1979	5.352313657566871
1980	5.212846097059442
1981	5.086810679297164
1982	4.975262403477135
1983	4.875868570261977
1984	4.792635980678716
1985	4.72632220912572
1986	4.674764519664625
1987	4.638309715731394
1988	4.614115249745286
1989	4.598298757812837
1990	4.545114500644196
1991	4.460389439929174
1992	4.384215733602267
1993	4.323256389572972
1994	4.291873669491564
1995	4.300091709624898
1996	4.348375771446785
1997	4.427811136286251
1998	4.526518885625506
1999	4.63624579112013
2000	4.757686673122938
2001	4.89006247767323
2002	5.02726361346798
2003	5.1611504561978645
2004	5.280880956237771
2005	5.385503317628992
2006	5.476788688611797
2007	5.549292114495411
2008	5.612777999954149
2009	5.668131712989624
2010	5.71906644388696
2011	5.771483049523293
2012	5.83549975867667
2013	5.613307116674412
2014	5.180765501155169
2015	5.0434457510887
2016	5.137605458361429
2017	5.248813901823705
2018	5.382212933547584
2019	5.542198021746605
2020	5.704305399770815
2021	5.848536379531151
2022	5.991268168035764
2023	6.165496281723607