Year % of total employment (modeled ILO estimate) 1991 9.31706576314204 1992 9.16703230096301 1993 8.97141511128585 1994 8.80046672216819 1995 8.60634271460032 1996 8.59810214392662 1997 8.57528072676325 1998 8.48164381631643 1999 8.50884636513142 2000 8.53379294560655 2001 7.90631751234114 2002 7.35105279230374 2003 6.84473974688871 2004 6.41603417548131 2005 5.97435856815698 2006 5.34723701022147 2007 4.75364636609568 2008 4.25860508370897 2009 3.86565533570231 2010 3.56069372108222 2011 3.27066188291156 2012 2.9600830717329 2013 2.65201410852019 2014 2.36242912006488 2015 2.06953873789531 2016 1.83714068278615 2017 1.63857357089548 2018 1.46406280943164 2019 2.24119552339228 2020 1.78329799635895 2021 1.42817054419814 2022 1.38861863291703