Year % of total employment (modeled ILO estimate) 1991 18.883463334579762 1992 19.040271155627465 1993 19.22155651667758 1994 19.764015160439666 1995 20.092060942845606 1996 20.146417901996188 1997 20.55140837967109 1998 20.426413547395818 1999 20.16554489061336 2000 19.99840681607523 2001 20.065115265323833 2002 19.645454781878176 2003 19.707166274980146 2004 19.45994251341049 2005 19.330452121690826 2006 19.157621621474547 2007 18.849261244133864 2008 18.600815794255094 2009 18.871094222166636 2010 19.115724868762776 2011 19.09361753263884 2012 18.944028615057146 2013 18.929351966984342 2014 18.548108082721892 2015 18.307367208247257 2016 18.150928083023267 2017 17.906557653325407 2018 17.650853592006033 2019 17.57902950574287 2020 17.49291487752589 2021 17.411468631261602 2022 17.45578674698666