Year % of total employment (modeled ILO estimate) 1991 26.580459902384 1992 27.2841773415817 1993 27.7751957501288 1994 28.1034272890112 1995 28.7166310388823 1996 30.518414450911 1997 28.8369448574638 1998 29.2561762929474 1999 28.9345755777069 2000 29.0133392555717 2001 29.744802933341 2002 32.7147481370673 2003 33.1805902167878 2004 36.3659243032204 2005 37.254929799013 2006 38.6889052521882 2007 39.0647047438805 2008 39.694062484151 2009 40.8923721629606 2010 40.6734901596912 2011 42.1811580134946 2012 42.0809232338039 2013 42.4638375706063 2014 42.7237350563418 2015 45.9550476807003 2016 47.0161067518487 2017 47.0988754604146 2018 47.6626858109918 2019 48.6867997530309 2020 49.7663471494095 2021 48.5891007061588 2022 49.1557897865282