Year % of total employment (modeled ILO estimate) 1991 7.32721096834035 1992 7.16825567869238 1993 7.03668745979021 1994 6.89356999983257 1995 6.76206832956798 1996 6.52129622293404 1997 6.38693221324432 1998 6.27405503667022 1999 6.1963653951378 2000 6.05444107199862 2001 5.87810126561437 2002 5.70989400853229 2003 5.54194724040575 2004 5.35182699932898 2005 5.20193684027223 2006 5.10189166204037 2007 4.88493780666655 2008 4.65212674464236 2009 4.40768823794062 2010 4.21387902908443 2011 4.11157815744307 2012 3.99918447714699 2013 3.99295133497108 2014 4.00646760827727 2015 3.94124568151183 2016 3.79839627716134 2017 3.68040650050375 2018 3.57656150100691 2019 3.56320325110952 2020 3.65511327967499 2021 3.62851539886625 2022 3.52278778151929