Year	% of total labor force
1991	3.9400702603496747
1992	2.5878195032865308
1993	2.161339165747097
1994	2.1147684857200257
1995	3.5868998574466806
1996	3.7850412908459625
1997	1.6520147373019385
1998	1.8483645235786077
1999	1.7358245432811343
2000	1.6946562187125398
2001	1.6543016918533253
2002	1.6171485207059497
2003	1.535065560901297
2004	1.4234321606466558
2005	1.4850373208441694
2006	1.455765650845527
2007	1.4309644611032557
2008	1.538281956224115
2009	1.5333950257378572
2010	1.490998960635027
2011	1.4392474409427405
2012	1.429096063505041
2013	1.4450950583529385
2014	1.4094512160745092
2015	1.3954085477145999
2016	1.4018077713018708
2017	1.4035372257059402
2018	1.365415190359706
2019	1.2960820160699769
2020	1.3237717788036192