Year % of total employment (modeled ILO estimate) 1991 4.68023286196553 1992 4.72482566531807 1993 4.77442224014498 1994 4.81789112462954 1995 4.86970481714717 1996 4.91832419587224 1997 4.97344761939462 1998 5.02861924388225 1999 5.08437603615867 2000 5.14679356135438 2001 5.20877445583129 2002 5.21334536220262 2003 5.14407350789815 2004 5.03485422052197 2005 4.33658153604581 2006 3.71947651811967 2007 3.17338013498281 2008 2.69924910173881 2009 2.28620598358486 2010 1.93260117154385 2011 1.62871454472819 2012 1.3678325161122 2013 1.1469858014027 2014 0.958445262494611 2015 0.921788161221288 2016 0.890942348934023 2017 0.872616464287363 2018 0.863206813311452 2019 0.853653133261457 2020 0.846140647596637 2021 0.837750287439948 2022 0.828293696434534