Year % of total labor force 1991 1.94005843812808 1992 1.7327103277088374 1993 1.4955393812332356 1994 1.421163108311104 1995 1.7586178901547993 1996 1.9208619628257873 1997 1.8470014766041494 1998 1.7359957492623856 1999 1.5627287744768403 2000 1.3802329154984634 2001 1.1511764397050868 2002 1.1400418785003976 2003 1.1211573750157884 2004 1.09443576958701 2005 1.0297458470232974 2006 1.017775448202863 2007 0.8590811964075545 2008 0.865313892614546 2009 0.9759524070218119 2010 0.8045772997402285 2011 0.89322503888429 2012 0.8833677005433973 2013 0.8763685291280998 2014 0.8540283630583265 2015 0.8393067631338973 2016 0.8556193878193766 2017 0.8531889965068309 2018 0.8430456570651251 2019 0.8423563740264466 2020 0.9736671713508172