Year	% of total labor force
1991	0.7561328797986767
1992	0.7588086224954459
1993	0.7185447837072739
1994	0.7052590293925511
1995	0.9639456288565391
1996	0.966550110658187
1997	0.8993493459016038
1998	0.9011443755542218
1999	0.8735782947189233
2000	0.8635164814803407
2001	0.8185080416127799
2002	0.7963138615897238
2003	0.78573209772393
2004	0.7370454292866239
2005	0.7423815608499703
2006	0.7591493185467961
2007	0.6806454811596929
2008	0.6925254060719895
2009	0.7039878006430937
2010	0.7070990689161443
2011	0.7087626069973365
2012	0.7036623899577739
2013	0.6491920959256838
2014	0.6547133987867026
2015	0.6375303985133162
2016	0.6262364152911184
2017	0.6236653373158415
2018	0.6393403508851926
2019	0.6237691609292819
2020	0.6438168547055182