Year	% of total labor force
1992	2.1962845811643703
1993	1.8527340275520208
1994	1.9311740581292343
1995	2.3393336497896957
1996	2.398665935201929
1997	2.4054301481284597
1998	2.3979897910243952
1999	2.3749667418901077
2000	2.2895147226483847
2001	2.177550937931228
2002	2.044297693647382
2003	2.007111872678685
2004	1.8145782426340802
2005	1.8207048055922161
2006	1.6333150863214985
2007	1.6163685700738593
2008	1.595778782155775
2009	1.5773022735294973
2010	1.5507323082404743
2011	1.465426027844192
2012	1.4472419835574746
2013	1.3301681798626013
2014	1.4120968333873687
2015	1.346908918119508
2016	1.3696927698626515
2017	1.3627413359278961
2018	1.349583506769601
2019	1.3511008002225458
2020	1.3897206679768526