Year % of total employment (modeled ILO estimate) 1991 4.365057732768106 1992 4.42430611663845 1993 4.431647939081235 1994 4.553544103992107 1995 4.520552259911126 1996 4.435447462720069 1997 4.5758661313050695 1998 4.5112542104862285 1999 4.463015355984707 2000 4.4853528560639395 2001 4.58912755229071 2002 4.542196770696312 2003 4.475228119212917 2004 4.503460257490506 2005 4.652538752541694 2006 4.666654088662909 2007 4.457364351941912 2008 4.66267010505176 2009 4.5040335255381585 2010 4.382776635560998 2011 4.185259016732773 2012 4.285093397573015 2013 4.250604371119309 2014 4.140135091454354 2015 4.120791442930572 2016 4.150568655794409 2017 4.24474606546905 2018 4.353485912701434 2019 4.2384341178801375 2020 3.9788758960918815 2021 3.948948950769588 2022 4.046423047675948