Year % of total employment (modeled ILO estimate) 1991 8.36800215440135 1992 8.12976850740378 1993 7.79482366367463 1994 6.94526673100332 1995 6.63807679233244 1996 6.21589082077449 1997 5.82485309687881 1998 5.54183525306375 1999 5.2534254458803 2000 4.97646426086658 2001 4.71243219873565 2002 4.45431467039581 2003 4.20503002496103 2004 3.98450375679308 2005 3.75416457546633 2006 3.54449838954833 2007 3.35449908630545 2008 3.17427839146174 2009 3.11693203904122 2010 3.09617998390102 2011 2.98913216366876 2012 3.0502256759024 2013 3.03035215963003 2014 2.74853576537494 2015 2.92551150831592 2016 2.90149476501454 2017 2.8029545924895 2018 2.80219031657526 2019 2.6637644673024 2020 2.61002769903677 2021 2.5475612943637 2022 2.53030669070141