Year % of total employment (modeled ILO estimate) 1991 3.1689016050452916 1992 3.195016951081547 1993 3.2066285199546734 1994 3.227004094380816 1995 3.292374513178676 1996 3.318289998677291 1997 3.3468653823587595 1998 3.3947115159219283 1999 3.5406609685697092 2000 3.5257130733010333 2001 3.6684745276907833 2002 3.722867909546769 2003 3.7391801472782444 2004 3.798030630299834 2005 3.8182279823947116 2006 3.861012853545587 2007 3.971263982190484 2008 3.9540477677650516 2009 3.9988431118978354 2010 3.9320777186206195 2011 3.921835437305431 2012 3.9242142582428805 2013 3.930492552990987 2014 3.885079770679508 2015 3.89703018591283 2016 3.872906412372572 2017 3.838607565155568 2018 3.8014691497830424 2019 3.709714474202133 2020 3.6634276737014515 2021 3.5943820407831226 2022 3.5313274768132854