Year % of total employment (modeled ILO estimate) 1991 7.56323358140776 1992 7.37453029399075 1993 7.22480456252917 1994 6.89792064490508 1995 6.63056377579591 1996 6.69817464377746 1997 6.02280347142939 1998 6.01655810800319 1999 6.1543173752494 2000 5.66176135772901 2001 5.11414636058492 2002 4.7566152002074 2003 4.82602246191188 2004 5.02730383915944 2005 4.51156300699974 2006 4.98472248105535 2007 4.93542444961307 2008 4.55926853830364 2009 4.42032450797704 2010 4.34501986551759 2011 4.16386348646973 2012 4.73460508795121 2013 4.66058958557596 2014 4.52117475615081 2015 4.45986024262631 2016 4.3837087939245 2017 4.17375778767074 2018 4.00787991566497 2019 3.85177237365649 2020 3.84469172673125 2021 3.71918154168754 2022 3.60399217218764