Year % of total employment (modeled ILO estimate) 1991 6.02683755213895 1992 5.9769092498896 1993 5.92667278335203 1994 5.78682846138098 1995 5.72835625603391 1996 5.6209984276942 1997 5.50300795585988 1998 5.42812466144927 1999 5.34813573499184 2000 5.26593266057505 2001 5.10889725012385 2002 4.94213278068594 2003 4.87589431927657 2004 4.49751060920527 2005 4.3211269045509 2006 4.39971971316999 2007 3.8570592166023 2008 3.71802087916448 2009 4.34351037203043 2010 4.67943267920826 2011 4.58156384076192 2012 4.73154709725807 2013 4.39298085612465 2014 4.17081735903226 2015 3.97694385126547 2016 3.56754145174277 2017 3.44051279941236 2018 3.32371531874399 2019 3.17843696950331 2020 3.08629605868419 2021 3.01219572647827 2022 1.99547702459153