Year % of total employment (modeled ILO estimate) 1991 31.49703949833245 1992 31.58044637936932 1993 30.704861303889544 1994 30.394233104123206 1995 30.046164403897784 1996 29.161395930115617 1997 29.050143851304654 1998 28.425067678978255 1999 27.893892990991038 2000 27.95888611289375 2001 27.06656061217246 2002 26.452010086890837 2003 26.346188453205734 2004 26.41157772196806 2005 25.569135324754207 2006 24.850871046205068 2007 24.238885177958394 2008 23.20734139532773 2009 22.25137323232201 2010 21.303618690285298 2011 20.93802550700925 2012 20.273589310138153 2013 20.142899077468364 2014 19.77954737681859 2015 18.85639345540919 2016 18.321164798031013 2017 18.13900830889298 2018 17.080603855163304 2019 16.81135409817016 2020 16.73339901445378 2021 16.369030289549144 2022 16.039159021940158