Year	% of working-age population
1960	5.497835650083959
1961	5.497495810735583
1962	5.51720367119029
1963	5.560879873569725
1964	5.625982644123962
1965	5.695202899363409
1966	5.769496197791603
1967	5.852574201027459
1968	5.93597993391047
1969	6.020150804105484
1970	6.086982386513041
1971	6.009033027288022
1972	5.951937706374552
1973	6.041025637383527
1974	6.122044044369462
1975	6.206243364877979
1976	6.305906850811686
1977	6.410436536120572
1978	6.5079413334659915
1979	6.595205689586346
1980	6.669389879576516
1981	6.721906812590811
1982	6.7485426299331435
1983	6.753240780227955
1984	6.74695139584323
1985	6.738366813125568
1986	6.723370998714762
1987	6.696127411684387
1988	6.651227437515712
1989	6.585316836800159
1990	6.514483544661903
1991	6.450530149347276
1992	6.397152857513308
1993	6.3460563312847125
1994	6.289658277092765
1995	6.2448685385271485
1996	6.203193697778177
1997	6.17724621602039
1998	6.205908366506933
1999	6.290149284514704
2000	6.381980037617573
2001	6.4597832514403235
2002	6.542727609243094
2003	6.629414116745994
2004	6.71038901552974
2005	6.785064773300029
2006	6.869661265916248
2007	6.94492193079307
2008	7.019254379632707
2009	7.090802821132478
2010	7.152548757440182
2011	7.218446425441197
2012	7.276723964897558
2013	7.310519054821207
2014	7.3304860016145295
2015	7.396882415663132
2016	7.514585187462821
2017	7.6718826867239525
2018	7.879688330159565
2019	8.125263312806958
2020	8.359389613764478
2021	8.604725323617643
2022	8.890625217626441
2023	9.186878647800828