Year % of total employment (modeled ILO estimate) 1991 34.30390898561351 1992 34.28837328606635 1993 34.46687978162477 1994 36.88259092816608 1995 36.61962982234899 1996 37.29859000903508 1997 37.11443649011274 1998 37.11196145931131 1999 37.14932116022036 2000 37.19130014155744 2001 37.8196510103732 2002 38.43489173494782 2003 36.81106240068515 2004 36.15366111982034 2005 38.14617958248638 2006 36.02949789681062 2007 36.74551235774245 2008 37.08673946568433 2009 37.66779584963304 2010 37.67197475315377 2011 37.93533463905007 2012 37.54442115446628 2013 37.64241177041724 2014 35.39007035656632 2015 36.00090233209881 2016 35.98474916031935 2017 35.13466069273193 2018 34.30960547226934 2019 34.610906260861654 2020 34.91863124560173 2021 33.11247828506157 2022 32.06810709150689