Year % of total labor force 1991 0.9511318216611031 1992 0.9299663381760482 1993 0.9488523550354631 1994 0.9143752527932272 1995 1.2961626157911692 1996 1.1870715211043972 1997 0.9954249442502956 1998 1.1097016297837559 1999 1.1044527874410885 2000 1.1971012907746106 2001 1.1495086887717 2002 1.1569826984696818 2003 1.1630729880300676 2004 1.1180895196372544 2005 1.1037193954144995 2006 1.09728373941758 2007 1.0738177062517462 2008 1.065819115154439 2009 1.059127009841556 2010 1.0635965646104746 2011 1.161066166776567 2012 1.1008910651846204 2013 1.1314697216656833 2014 1.1279749577870513 2015 1.1306723972309458 2016 1.1380096940249822 2017 1.1432469595598374 2018 1.1306394261238684 2019 1.1388553517541227 2020 1.131646389304365