Year	% of total labor force
1991	1.1481235666355594
1992	1.1159910329868012
1993	1.0055186298348393
1994	0.9133787198452241
1995	0.9243133719124007
1996	0.9685686467282623
1997	0.8732084258701142
1998	0.8375630476525907
1999	0.8269729081426727
2000	0.5546107050501757
2001	0.7704376190599672
2002	0.7389536969865942
2003	0.7070621767862217
2004	0.7092937916363572
2005	0.6910766413937109
2006	0.5900254612775884
2007	0.5828780156233285
2008	0.5820959222510699
2009	0.5990309831454719
2010	0.5994493118901646
2011	0.4696948002269392
2012	0.445481094255437
2013	0.4300809030623466
2014	0.42064713240421975
2015	0.4156056864515523
2016	0.41108884029221504
2017	0.41078044907796674
2018	0.4128823104693798
2019	0.4140996986434454
2020	0.4206781469656347