Year	% of total labor force
1991	3.140037837455941
1992	1.55902872510426
1993	1.5615972016178146
1994	1.5462164084485264
1995	1.362614402834238
1996	1.330042709149216
1997	1.298298507677993
1998	1.2673111178388121
1999	1.2374791175398916
2000	1.3182785918148083
2001	1.2658708558552856
2002	1.2178265449652006
2003	1.0564558254734977
2004	0.5699629524080935
2005	1.1139020545923397
2006	1.0882695426003113
2007	1.0631963936378328
2008	1.0385725858380241
2009	0.9330155671619087
2010	0.9106566626413003
2011	0.8886012739837831
2012	0.8669798474303942
2013	0.8917039359076305
2014	0.8698030389304112
2015	0.848406395409859
2016	0.8274579553258009
2017	0.8397786343519849
2018	0.7585345442402905
2019	0.8114577839087922
2020	0.8489576921934096