Year % of total employment (modeled ILO estimate) 1991 28.959014735861754 1992 29.494905593107088 1993 30.38786910194986 1994 31.305140149856495 1995 32.26718106847724 1996 32.98097804558109 1997 33.39344749511248 1998 33.755035801625 1999 33.84878856832068 2000 34.31085282656682 2001 34.856771980706455 2002 35.60920504076473 2003 36.25259527992495 2004 37.33917559738781 2005 37.99601308394829 2006 38.609111651480866 2007 38.88234659763209 2008 39.33127089371307 2009 39.87627237550518 2010 40.11812462039325 2011 40.89519699102512 2012 41.42392170860381 2013 42.710095583661065 2014 43.87406486407253 2015 44.98535309243841 2016 45.59759039144317 2017 46.07476308288702 2018 46.66653806815986 2019 47.25424060119358 2020 46.55670996076991 2021 46.57416920988052 2022 46.63077559939348