Year	% of working-age population
1960	79.70597950573693
1961	80.00422757180408
1962	80.3542586377604
1963	80.81584719986652
1964	81.39918998873858
1965	81.95877905889485
1966	82.44514797185556
1967	82.91648422484975
1968	83.36795644122752
1969	83.81348996910907
1970	84.26840294745887
1971	84.73119023825069
1972	85.19071838407639
1973	85.57829793224165
1974	85.87693840154408
1975	86.16230288909084
1976	86.46608183708648
1977	86.72314774006932
1978	86.91804490813333
1979	87.13095772048078
1980	87.3355234286537
1981	87.57856464769392
1982	87.84307441218056
1983	88.04790337062995
1984	88.21501377816136
1985	88.34695719081867
1986	88.44385100828214
1987	88.53834145728833
1988	88.57646180715302
1989	88.55105778699487
1990	88.50935771608795
1991	88.43028635700583
1992	88.3176196883988
1993	88.18578717681261
1994	87.79575996702931
1995	87.29474528668635
1996	86.99533946579004
1997	86.67325781642057
1998	86.16373247873672
1999	85.59336161217756
2000	85.07917063893498
2001	84.59757941206446
2002	84.14253195791116
2003	83.7097662469277
2004	83.3102518346956
2005	82.98181777549733
2006	82.71539359431277
2007	82.47664474567104
2008	82.26792334941703
2009	82.07057254278291
2010	81.85520166159904
2011	81.62678048588654
2012	81.409184230166
2013	81.156384429859
2014	80.80285070607734
2015	80.34527441146656
2016	79.87602134322395
2017	79.37030087955904
2018	78.77162448727861
2019	78.11925181486285
2020	77.40098114798971
2021	76.64505015571311
2022	75.86120151004049
2023	75.01068698963768