Year % of total labor force 1991 0.9533582301510835 1992 0.9066575486923828 1993 0.8848691906228056 1994 0.855415482640308 1995 1.1953564021907754 1996 1.2060267598739394 1997 1.199540529530778 1998 1.1621094234470053 1999 1.1362313199364278 2000 1.1237084507990094 2001 1.047953330321909 2002 1.0466067674028694 2003 1.0261069513655081 2004 1.0138791205996887 2005 1.0603533692660545 2006 1.0476826723952453 2007 0.9903356145512184 2008 0.9711294731689253 2009 0.9642619523103719 2010 0.9340205054993065 2011 0.9085441213929988 2012 0.9015850192879525 2013 0.8858879265187888 2014 0.8800850858573726 2015 0.8632088915860571 2016 0.8680561892287568 2017 0.8552637988803992 2018 0.8496671963389725 2019 0.8397006441447811 2020 0.8485160395468613