Year	% of total labor force
1991	1.9157723669928308
1992	1.6757022705300293
1993	1.4878752119059775
1994	1.5161372131744055
1995	1.3887393594066508
1996	1.3539480375030377
1997	1.4720524617180526
1998	1.214928768646337
1999	1.3020625510849542
2000	1.121965084446572
2001	1.103302593752828
2002	1.0893518315649113
2003	1.102195025536947
2004	1.0302022328191112
2005	1.9273472116001698
2006	0.6486367277574359
2007	0.7522053473090448
2008	0.729910182631211
2009	1.0174426991273844
2010	0.9384967929894865
2011	0.9307240576371334
2012	0.9650383079063195
2013	0.9555852848755295
2014	0.9470534707123714
2015	0.9033171834461605
2016	0.8647170876761747
2017	0.8330659071037342
2018	0.8315090799003333
2019	0.8140889778015633
2020	0.8827537113614287