Year	% of working-age population
1960	6.69989031857821
1961	6.5658179963446255
1962	6.511552256663321
1963	6.496689362945349
1964	6.473485098934036
1965	6.457486785592546
1966	6.473117726523074
1967	6.502550702893091
1968	6.542147011382396
1969	6.589046666934834
1970	6.628933886243591
1971	6.675422290475036
1972	6.711411361628218
1973	6.759979107454885
1974	6.8583827042927465
1975	6.97052014171713
1976	7.07377581566941
1977	7.138723489343767
1978	7.1587362041714115
1979	7.193672010966626
1980	7.237783213084881
1981	7.269896827562369
1982	7.30612782585406
1983	7.3251172226033345
1984	7.334905054405237
1985	7.36535854500822
1986	7.409568323934525
1987	7.462744440527001
1988	7.5315686813107305
1989	7.635048295507421
1990	7.763671502321576
1991	7.885188608213756
1992	8.019300432516054
1993	8.189478485684171
1994	8.363498082542266
1995	8.538322624153093
1996	8.70791566191941
1997	8.86905241875524
1998	9.065516510252793
1999	9.278362508256055
2000	9.474544683042803
2001	9.658106785590627
2002	9.820375924652627
2003	9.967608361193413
2004	10.092610525309697
2005	10.205092017361725
2006	10.343915309270296
2007	10.495307041358808
2008	10.637244586062739
2009	10.790472271091124
2010	10.972460949557057
2011	11.197594207510457
2012	11.472171208303495
2013	11.799219371170004
2014	12.185892567279494
2015	12.659751146521613
2016	13.189335279852616
2017	13.796244069953346
2018	14.460303485027767
2019	15.13470389749665
2020	15.8375471613563
2021	16.479750818072816
2022	17.144137876209633
2023	17.80246845285585