Year % of total employment (modeled ILO estimate) 1991 30.5939414727662 1992 30.3294453909473 1993 30.0115247565726 1994 29.5716753062573 1995 29.2077279925638 1996 28.8446828670499 1997 28.4396216561249 1998 27.9882298438622 1999 27.5409233667704 2000 27.0881998313787 2001 26.4707067154127 2002 25.796324669974 2003 25.2000453566164 2004 24.6319187055887 2005 24.0831027102192 2006 23.4721131978424 2007 22.8602217259584 2008 22.5491273512823 2009 22.1192740194035 2010 21.7977085837686 2011 21.2781140349256 2012 20.7546842043548 2013 20.5418842648559 2014 19.7703217776126 2015 19.5351835825131 2016 19.1701053922935 2017 19.0434083822893 2018 18.6705915777724 2019 18.2431763424535 2020 18.0983540050581 2021 17.6467487365919 2022 17.2153616353062