Year	% of working-age population
1960	6.069711967783092
1961	6.122673893799394
1962	6.192994722283936
1963	6.272367589138205
1964	6.3494422349426936
1965	6.425231152122487
1966	6.5036697793279625
1967	6.580438383476887
1968	6.651247551308026
1969	6.712744212229147
1970	6.764790168625659
1971	6.829170207347493
1972	6.909898601902294
1973	6.990259977850304
1974	7.070001008140594
1975	7.152033865754489
1976	7.234498013298962
1977	7.311946893334452
1978	7.381439044026704
1979	7.441685829160187
1980	7.480928306269601
1981	7.4983417652649615
1982	7.5101926814312066
1983	7.524513312150847
1984	7.545033458850086
1985	7.5754504094316335
1986	7.619063483125677
1987	7.676574468520272
1988	7.7440772727814435
1989	7.82003182053792
1990	7.898034207270109
1991	7.978495887877251
1992	8.065272721074882
1993	8.159256681441057
1994	8.26398398193333
1995	8.37191227800724
1996	8.478681409206382
1997	8.584621047242525
1998	8.68915451713733
1999	8.794724037670724
2000	8.902483161672846
2001	9.018696445077218
2002	9.143772466762881
2003	9.272320499939388
2004	9.405757960465674
2005	9.547072492455493
2006	9.695587887981546
2007	9.845708626537435
2008	9.999213368171109
2009	10.156951010371333
2010	10.30532436262476
2011	10.468891161949431
2012	10.656399558882061
2013	10.861706781528065
2014	11.093406527362268
2015	11.347946237705154
2016	11.60972233451278
2017	11.884024475475574
2018	12.17737377995971
2019	12.473827850877353
2020	12.739955493146287
2021	12.972259851126385
2022	13.245991567335127
2023	13.612152820723871