Year % of total employment (modeled ILO estimate) 1991 46.6380048457909 1992 46.3329895228272 1993 45.9327734115066 1994 46.0863685699543 1995 44.9458740017746 1996 44.4137148530298 1997 44.3701953593342 1998 43.1127830122346 1999 42.0826539021268 2000 41.3086930602798 2001 39.8921974857785 2002 38.9912994765681 2003 37.6746376432421 2004 37.2975417964197 2005 36.2592246128261 2006 35.4160940076965 2007 33.9672522599352 2008 33.0587440918298 2009 32.4361640189636 2010 30.7368628675685 2011 29.6354243061328 2012 28.7947428685219 2013 27.8092052404611 2014 26.1460679619517 2015 24.8549883990719 2016 23.4470803505505 2017 22.1721043655664 2018 21.3932386023504 2019 20.9260936085178 2020 20.9226679177418 2021 20.6323892475427 2022 20.1384592723523