Year	% of total labor force
1991	1.6860943603834597
1992	1.437970668909678
1993	1.6631611387764107
1994	1.6574876382500079
1995	2.453152847473381
1996	2.627388616665795
1997	2.5614685496354936
1998	2.5028776105974657
1999	2.3949267172742026
2000	2.4046405738089507
2001	1.5617030262382694
2002	1.7283190529081789
2003	1.7652382623118141
2004	1.7637134987716636
2005	1.83166179534315
2006	1.5699576172610519
2007	1.5876252395057193
2008	1.6220421319612908
2009	1.6238748419708335
2010	1.6447231229463684
2011	1.6493378992994727
2012	1.6413768428740216
2013	1.648945857140693
2014	1.643599781172016
2015	1.6511909599051533
2016	1.6735359784997739
2017	1.3914718237999109
2018	1.4068143821767953
2019	1.4043282958442693
2020	1.4368569293491835