Year % of total employment (modeled ILO estimate) 1991 23.132361098381267 1992 22.903402750235944 1993 22.63115251326344 1994 22.46392605878175 1995 22.259830620282756 1996 22.157852561988417 1997 22.126115387042432 1998 22.491379719101026 1999 22.154842750711676 2000 22.25546004381236 2001 21.700224763442726 2002 21.75694194782306 2003 21.574595664042825 2004 21.616629583209875 2005 21.56108704986169 2006 21.6112113859257 2007 21.948622527256227 2008 22.139926430366668 2009 21.501931627465503 2010 21.47735720579363 2011 21.40467443784604 2012 21.69163509938351 2013 21.526447154720042 2014 21.793846571075072 2015 21.58138347841727 2016 21.022349330338756 2017 20.788067514641572 2018 20.64147136614566 2019 20.51247059393801 2020 20.35772732276048 2021 20.851525662047273 2022 20.92705487487362