Year % of total employment (modeled ILO estimate) 1991 13.8268655467401 1992 13.5832963577035 1993 13.8944262470939 1994 12.9300893598689 1995 11.7535767384431 1996 11.3931012664447 1997 11.952211118582 1998 10.2857073496863 1999 9.721098508473 2000 8.33770595587313 2001 8.03279026342112 2002 7.80043800208481 2003 7.61632818280247 2004 7.31376381096613 2005 7.16719099117867 2006 6.73192457700705 2007 6.68462883578987 2008 6.53352238385825 2009 6.46578588976895 2010 6.49750013328299 2011 6.17326715160072 2012 6.12291413778127 2013 5.75456070424625 2014 5.53619226423275 2015 5.27830754126927 2016 4.87114918759461 2017 4.60438060891738 2018 4.47742015433187 2019 4.54158791557541 2020 3.87693623687153 2021 4.11873844653907 2022 4.09970222534219