Year % of total employment (modeled ILO estimate) 1991 25.0836069321207 1992 24.2620522583787 1993 24.9096580214553 1994 22.7985288623451 1995 21.912055694074 1996 21.5812309389182 1997 22.2677361902627 1998 21.4207235575289 1999 23.1897346348609 2000 23.258615765442 2001 19.8427547689039 2002 21.7381107368041 2003 18.659199234718 2004 18.0195174969605 2005 17.6160604717623 2006 18.5988661447673 2007 18.6352568128316 2008 18.7604531495863 2009 18.8133621513935 2010 18.4884310278788 2011 17.948563087588 2012 17.5200177925701 2013 19.0807151878868 2014 19.9549280945025 2015 19.6595292793604 2016 18.6248165233456 2017 18.5525991370193 2018 18.5264339887998 2019 17.2140809498689 2020 15.8811360630061 2021 16.8341639479009 2022 17.3482902486332