Year	% of working-age population
1960	6.60979659041027
1961	6.58455022173571
1962	6.606116917322948
1963	6.650952531834716
1964	6.6892269584647215
1965	6.724880095039637
1966	6.765860945180352
1967	6.802762722059244
1968	6.84218549954437
1969	6.883563298523131
1970	6.9180415384924405
1971	6.956431226775368
1972	6.998556607306135
1973	7.0516000264830705
1974	7.12929299940045
1975	7.214058210835007
1976	7.294901840651767
1977	7.353770582212382
1978	7.382718257841718
1979	7.40884369325679
1980	7.423837909765819
1981	7.418460375228998
1982	7.41156049374734
1983	7.40148825563666
1984	7.393862812254254
1985	7.399526653798089
1986	7.416250745217081
1987	7.443568820080773
1988	7.483091385245559
1989	7.542815470063863
1990	7.613681735265077
1991	7.686290519506865
1992	7.771358790506985
1993	7.875895163043235
1994	7.9785958024168915
1995	8.076135782263785
1996	8.169319781372133
1997	8.255996922776205
1998	8.353226538056456
1999	8.455471805493197
2000	8.552745793469494
2001	8.649800327526595
2002	8.7476138592577
2003	8.84107774964914
2004	8.9188797359135
2005	8.98723204420692
2006	9.063545867310328
2007	9.13952695885436
2008	9.20714457030211
2009	9.28000952248658
2010	9.366776744860552
2011	9.48350607635485
2012	9.636315777924061
2013	9.820161656780266
2014	10.048506163793885
2015	10.332975194012365
2016	10.64915673956064
2017	11.001907755691617
2018	11.3832974663712
2019	11.771591868151944
2020	12.145927630359026
2021	12.45240154324962
2022	12.756480600603357
2023	13.11488766771872