Year % of total labor force 1991 0.8232318015437085 1992 0.786690978552856 1993 0.7524439537437371 1994 0.7097212565417252 1995 0.8909724883781129 1996 0.8757020059137381 1997 0.8257848856884068 1998 0.8341537952754066 1999 0.8204911380212353 2000 0.8176333787253777 2001 0.788570834249358 2002 0.7857694443100804 2003 0.7831971530707075 2004 0.7560107284156496 2005 0.7668783527576916 2006 0.7473567881306535 2007 0.6783630310886466 2008 0.6750775819668876 2009 0.6837888546311395 2010 0.6836756470329042 2011 0.6893000671055515 2012 0.6877026174629537 2013 0.6856255400788241 2014 0.6794371887813251 2015 0.6644606942026474 2016 0.6581233421528575 2017 0.6507773471291465 2018 0.6439295400741002 2019 0.6288738873785695 2020 0.6294279109192832