Year % of total labor force 1992 1.7699921539952448 1993 1.5659373354735575 1994 1.4504458691322366 1995 2.1650826905000304 1996 1.964727087917118 1997 1.9228736808552183 1998 1.9168105909628566 1999 1.834610151986735 2000 1.8124007442224446 2001 1.8200902761308468 2002 1.8073134586075765 2003 1.765617632763274 2004 1.1947528219532613 2005 1.2117391692822257 2006 0.9613020912836369 2007 0.9574502005657773 2008 0.9618062273598084 2009 0.9656681106249969 2010 0.9702688311983355 2011 0.9749479887823579 2012 0.9792197134315901 2013 0.5564460983030043 2014 0.9413626150019792 2015 1.1868579955934189 2016 1.3600929446529273 2017 1.389887887056868 2018 1.395903722875229 2019 1.467650851619744 2020 1.4451112323452748