Year % of total labor force 1992 1.627561782245254 1993 1.2982081482034422 1994 1.8315274831472537 1995 1.3812317374931609 1996 1.4960336474471596 1997 1.4679194305517391 1998 1.431791686028974 1999 1.4650066733400067 2000 1.4078690494068178 2001 1.2380201091299379 2002 1.389565086714008 2003 1.1445004671642816 2004 0.9935824509493183 2005 1.1810116939841233 2006 1.0762819741359657 2007 1.1583995551745707 2008 1.1608896284185781 2009 1.1616933072064348 2010 1.1630052825430024 2011 1.1870437607115985 2012 1.3375239125585106 2013 1.3450640121423048 2014 1.3357676178383633 2015 1.310466357250999 2016 1.3277821310702025 2017 0.6824640853275097 2018 0.7003017576125216 2019 0.6804466840861018 2020 0.6794282708162263