Year % of total employment (modeled ILO estimate) 1991 28.880953528270652 1992 29.093301917976095 1993 29.22473179685874 1994 29.41432261797506 1995 29.586345090263336 1996 29.890780167651904 1997 30.302097550955278 1998 30.819839798173 1999 31.216517956078757 2000 31.679772068609193 2001 32.202275576010074 2002 32.64210016996037 2003 33.206050262674395 2004 33.94521842996421 2005 34.59209678170643 2006 35.224739084906915 2007 36.12512077126116 2008 36.95218567688933 2009 37.85806367554266 2010 38.763294397329 2011 39.3472320396529 2012 39.87832558541547 2013 40.30389791632057 2014 41.09357682452396 2015 41.71985190481246 2016 41.4266463922048 2017 41.29462854334028 2018 41.46396818422576 2019 41.28421512418159 2020 40.68784988023552 2021 40.69368234274619 2022 41.13784554114395