Year	% of working-age population
1960	5.076126926660201
1961	5.114244608923065
1962	5.153889316749332
1963	5.194294655938145
1964	5.230607272686403
1965	5.264909107030391
1966	5.3075543449949025
1967	5.356338338065652
1968	5.40478384137846
1969	5.451897656744493
1970	5.614588622975652
1971	5.816204858474452
1972	5.900324312840917
1973	5.950392814879659
1974	5.996235525072966
1975	5.64084090482211
1976	5.2447334098171705
1977	5.290073418238361
1978	5.381000775275297
1979	5.36193526086233
1980	5.401755531290302
1981	5.47456814665415
1982	5.445707058648574
1983	5.436233654987737
1984	5.4649847746588325
1985	5.518072199377288
1986	5.524835092356201
1987	5.51061253360524
1988	5.5421618688127054
1989	5.594133291635018
1990	5.632658623701035
1991	5.684454252381237
1992	5.6454497499245635
1993	5.553814230410469
1994	5.557492173988389
1995	5.599641426641129
1996	5.611716209061342
1997	5.610314272773953
1998	5.509313254760188
1999	5.409641737648243
2000	5.396631908484871
2001	5.387602400986029
2002	5.383717717636912
2003	5.385410809795835
2004	5.400466276239184
2005	5.425589965918804
2006	5.451828353560308
2007	5.482093352666833
2008	5.525290461394055
2009	5.592347477080847
2010	5.678999424241617
2011	5.783508344062198
2012	5.913642910247024
2013	6.066348611453078
2014	6.25648233215906
2015	6.487603495763622
2016	6.74238676476675
2017	7.025227479803195
2018	7.345744808954101
2019	7.709270255755817
2020	8.098982431481202
2021	8.489055495728628
2022	8.898481388924944
2023	9.363635213853113