Year % of total labor force 1991 0.8924208408842309 1992 0.7855079842943032 1993 0.7862333687053272 1994 0.739236115657343 1995 1.1088173152911955 1996 1.1025235929793906 1997 1.0901357394541797 1998 1.0794989324059168 1999 1.0448700821967742 2000 1.0395398343801814 2001 0.8366205305303268 2002 0.8220502603093366 2003 0.8286937923438039 2004 0.600636332016035 2005 0.6130017057457808 2007 0.6644705045462661 2008 0.754198408208655 2009 0.8271645594356747 2010 0.9395217651524901 2011 0.9944451202102151 2012 0.9749453884469746 2013 0.7125799112625137 2014 0.6890180300556694 2015 0.6834703774782236 2016 0.6265285038729279 2017 0.6086406144687043 2018 0.6279727198685725 2019 0.6442033729939108 2020 0.5701932228752311