Year	% of total labor force
1991	1.149808760269119
1992	1.423409955606968
1993	1.393079216430316
1994	1.350363280658187
1995	2.1223487134989805
1996	1.596250285291367
1997	1.4144818746918424
1998	1.596314361881701
1999	1.5535011199511035
2000	1.6429402719031778
2001	1.6587188617336102
2002	1.6180775802954688
2003	1.45843207470433
2004	1.5019230821745562
2005	1.4824910574452026
2007	1.434706452846452
2008	1.391225703804104
2009	1.3494646148135243
2010	1.3199607842565737
2011	2.708264017110736
2012	2.6579381439566654
2013	2.60069091983968
2014	2.5283760708289686
2015	2.4463145942056497
2016	1.1133413766201894
2017	1.0727118709756003
2018	1.0396563229087226
2019	1.0071208315959146
2020	1.1457633807658156