Year % of total labor force 1991 1.301320840653263 1992 1.1317058717015918 1993 1.0750229175340147 1994 1.0422183712779776 1995 1.0703559477775146 1996 1.045198640887462 1997 1.0206420530474383 1998 1.0070020780085254 1999 0.9730618545734319 2000 0.9412815788004243 2001 0.9109049995561268 2002 0.8818684850097305 2003 0.8591790907846489 2005 0.8261856797236132 2006 0.8196502962011258 2007 0.803129528061011 2008 0.7668760664370299 2009 0.7448479796308906 2010 0.7415330825715626 2011 0.7446709485246207 2012 0.7103239669225806 2013 0.6877074584166224 2014 0.6747137526904211 2015 1.21572268510963 2016 1.1860718054863755 2017 1.3788999666412278 2018 1.3222575615332899 2019 1.3715633765147202 2020 1.4513705343790804