Year % of total employment (modeled ILO estimate) 1991 2.69467461904061 1992 2.73369955766958 1993 2.76057092368602 1994 2.78907316279128 1995 2.820519627762 1996 2.85582633707385 1997 2.87692108411243 1998 2.9112528000134 1999 2.93833801398635 2000 2.96913428975503 2001 3.01680192560913 2002 3.05261404894753 2003 3.08136607406894 2004 3.10936530907587 2005 3.13241878680161 2006 3.15237779371229 2007 3.18044608367949 2008 3.22496935470397 2009 3.23753624409105 2010 3.24357934330844 2011 3.25462437229989 2012 3.25469434036734 2013 3.2450972448889 2014 3.23218497361999 2015 3.2116097959808 2016 3.19277012246723 2017 3.16722908511336 2018 3.14031327648219 2019 3.10871866260847 2020 3.0809463554659 2021 3.04924808001057 2022 3.01252150833462