Year	% of total labor force
1992	2.2457483744801374
1993	1.8853582581929507
1994	1.895425694854297
1995	2.433192182222562
1996	2.3540385505709986
1997	2.467091703279325
1998	2.403841046674721
1999	2.2175155113671696
2000	2.133245781339271
2001	1.9998655835579604
2002	1.9204586465225997
2003	1.8704488415756362
2004	1.804264021012745
2005	1.8057704380629498
2006	1.684274680341956
2007	1.6794023641927671
2008	1.6652770576221902
2009	1.6482135403923694
2010	1.6035475518998736
2011	1.5188429886198256
2012	1.5349293998456577
2013	1.4302167209270196
2014	1.4816970636704114
2015	1.548153431804374
2016	1.5367005445006099
2017	1.5286178853329915
2018	1.5286928623269085
2019	1.5311265762350996
2020	1.559673613255795