Year % of total employment (modeled ILO estimate) 1991 11.8295856899738 1992 11.6674970317211 1993 11.3913767040721 1994 11.1167275403791 1995 10.8782496189461 1996 10.6556301972482 1997 10.5127124520592 1998 10.3852285291974 1999 10.2839450895471 2000 10.0311399983468 2001 9.88791415609117 2002 9.7976694387169 2003 9.81345700453326 2004 10.0322580520972 2005 10.3440871371277 2006 11.1350858733944 2007 12.0536556118847 2008 13.0830302322333 2009 14.0565972792283 2010 15.1334204150577 2011 16.2491819672927 2012 17.3669799926095 2013 16.96278944616 2014 16.5996067392816 2015 16.2278502679217 2016 15.7303662094648 2017 15.2037205460195 2018 14.7125742033175 2019 14.1263655919805 2020 13.41286711994 2021 13.4594719242616 2022 13.6036771497436