Year	% of working-age population
1960	4.166303633238549
1961	4.135451003895715
1962	4.108814381594417
1963	4.09422483637517
1964	4.086812426147209
1965	4.086871485616495
1966	4.099410878926373
1967	4.115014989953201
1968	4.1323654143591275
1969	4.153749273396628
1970	4.1795711120644565
1971	4.2097758512519245
1972	4.2410924327884825
1973	4.277856559666537
1974	4.319340345463832
1975	4.36363452474867
1976	4.411425656219801
1977	4.460577458289128
1978	4.511885157046447
1979	4.56843254270044
1980	4.630216426915765
1981	4.695328268463389
1982	4.763775499764696
1983	4.83607502116379
1984	4.9105161387434055
1985	4.988661281556309
1986	5.070807091630565
1987	5.156246685194221
1988	5.245658386458563
1989	5.3391270103491895
1990	5.442623590337084
1991	5.554987408439541
1992	5.6724717404936245
1993	5.798931082201236
1994	5.919198895027624
1995	6.040300367818122
1996	6.161643281657601
1997	6.284401443202227
1998	6.403639777933217
1999	6.59375171513773
2000	6.843276190924026
2001	7.068362885080731
2002	7.2664039457164415
2003	7.43310493671947
2004	7.560850343903888
2005	7.634799690747215
2006	7.669559946775011
2007	7.700639212763889
2008	7.744651952461799
2009	7.806061035975624
2010	7.883807507829258
2011	7.97330358533105
2012	8.071547741811079
2013	8.180299812359527
2014	8.299584868507862
2015	8.433725305174269
2016	8.582664915289952
2017	8.614025507259848
2018	8.548401203137892
2019	8.530894226925074
2020	8.56319578952011
2021	8.635088417889916
2022	8.734143550952146
2023	8.84691341060157