Year % of total labor force 1991 0.8802029731552661 1992 0.8500332087092177 1993 0.8137352986064402 1994 0.7786753881535498 1995 1.085238177223124 1996 1.0797116253990353 1997 1.0324626432631703 1998 1.0187837762580574 1999 0.998212094907458 2000 0.988503550208215 2001 0.9331072835056617 2002 0.9219750053172366 2003 0.9083902245411928 2004 0.8680142915504284 2005 0.8893325298596872 2006 0.894680139887379 2007 0.818644418764482 2008 0.8189569583593965 2009 0.8303437395759908 2010 0.830945157705761 2011 0.8244358936470324 2012 0.8195537032032609 2013 0.7803939114875774 2014 0.772209902986969 2015 0.7615035459339435 2016 0.7576300476659206 2017 0.7479384585128154 2018 0.7490461323930208 2019 0.7404302331119995 2020 0.7365453085672263