Year	% of working-age population
1960	7.968665308753972
1961	8.066848318079176
1962	8.257861871221369
1963	8.56445305075855
1964	8.801197572776605
1965	8.910725323185428
1966	8.990970460372774
1967	9.08189816653209
1968	9.172410953097897
1969	9.25057392306766
1970	9.29745013455716
1971	9.305244903202405
1972	9.30597503225401
1973	9.321171787874118
1974	9.343736515971761
1975	9.368000286205671
1976	9.393805896417069
1977	9.419577474948959
1978	9.443268109880991
1979	9.466318777900431
1980	9.452318326546784
1981	9.397903366782712
1982	9.34229724194115
1983	9.296670887738115
1984	9.26435625593249
1985	9.242601863930707
1986	9.229087369613854
1987	9.22132902333487
1988	9.21594440222762
1989	9.21314733985245
1990	9.210605875247662
1991	9.187499520943646
1992	9.13304786032935
1993	9.08130975732056
1994	9.05718009449988
1995	9.055106357997298
1996	9.068390755780904
1997	9.102857540079967
1998	9.160306795614162
1999	9.238506932207583
2000	9.338201638771654
2001	9.426235730591873
2002	9.494953123316211
2003	9.567464860207947
2004	9.614380747145669
2005	9.640875298610037
2006	9.675459309700626
2007	9.721030643005353
2008	9.785853370646636
2009	9.874902595685255
2010	9.967233065256549
2011	10.051917778063729
2012	10.144481790717643
2013	10.258547624030951
2014	10.376313002368905
2015	10.526486064050218
2016	10.725283954567269
2017	10.94630249244657
2018	11.138750677552885
2019	11.392191839396702
2020	11.729999250671412
2021	12.011338041267706
2022	12.295292725702712
2023	12.669921288804227