Year	% of total labor force
1991	1.8551774291693257
1992	1.8321981339062006
1993	1.7360181818970917
1994	2.067947231501178
1995	2.870740903672023
1996	2.6661710323080965
1997	2.511704791788334
1998	2.419948000920295
1999	2.326410257291806
2000	2.2312694274320837
2001	2.1564329023272646
2002	2.221529739347212
2003	2.1215361841915796
2004	1.926034762175979
2005	2.0052292892508374
2006	1.8916900523422413
2007	1.780116868542239
2008	1.6742834430838263
2009	1.5460835514496927
2010	1.4519476013954116
2011	1.3372211361409454
2012	1.2153870147190897
2013	1.1138343649443798
2014	1.0699719014016158
2015	1.013915314742194
2016	0.97231107587081
2017	1.0544803605141815
2018	0.9819973826763637
2019	0.9735384462014867
2020	1.043953359504548