Year % of total employment (modeled ILO estimate) 1991 40.3706956600745 1992 40.4035914303494 1993 40.0185593318641 1994 37.5484717153285 1995 36.9771699948504 1996 36.4398747810104 1997 35.7634507284616 1998 35.3832543804577 1999 35.0139180821451 2000 33.8679967126704 2001 32.8415269596738 2002 32.0261993875468 2003 31.8606965174129 2004 32.2403298645199 2005 31.6601675931303 2006 30.7895597210113 2007 31.3490550623604 2008 30.73681348559 2009 31.3462061463149 2010 31.7990266713792 2011 31.8218909803068 2012 31.8554111608605 2013 31.7575924144565 2014 31.3558147912106 2015 31.4988976641643 2016 31.1616954474097 2017 31.2081481064656 2018 31.0932430526167 2019 30.0468561488174 2020 28.7541650194838 2021 26.7211656100545 2022 26.9374492282697