Year % of total employment (modeled ILO estimate) 1991 25.4329734882642 1992 25.5720184849323 1993 25.6707027087514 1994 25.8062965390036 1995 25.9142492210158 1996 25.7943023612243 1997 23.9073446534102 1998 22.2824102656019 1999 21.7015686127776 2000 21.1543983165844 2001 23.7103869869669 2002 23.1007202739403 2003 22.6358071543337 2004 19.9634290230405 2005 17.6075285460319 2006 15.5006543789768 2007 16.4093497457514 2008 17.3136616729446 2009 18.1134639044703 2010 18.1893444282291 2011 18.1798181930181 2012 17.8639470075326 2013 17.9011167450906 2014 17.7673687375533 2015 17.2634318206337 2016 17.1457906860188 2017 16.9153137340939 2018 16.6897651433734 2019 16.5089300421206 2020 15.0394895230536 2021 15.9516118491686 2022 15.7000832289161