Year % of total employment (modeled ILO estimate) 1991 20.30798842781 1992 20.2449631613977 1993 19.5852018430568 1994 18.6896138322501 1995 18.4303123008705 1996 18.526619784596 1997 18.0616054770959 1998 18.2721932115777 1999 18.9573823193844 2000 20.3207252566736 2001 20.866449010244 2002 20.1355192084919 2003 20.6797398324119 2004 19.9120180870109 2005 20.3203347299476 2006 19.5045218702092 2007 18.3785833238981 2008 18.0476259461464 2009 18.6910326845038 2010 18.5422274047853 2011 18.0438518169859 2012 17.6065707454139 2013 17.0243942432098 2014 16.4359022430382 2015 16.3195735650953 2016 16.2999588945624 2017 16.9346037271268 2018 16.9993716691205 2019 16.11121157597 2020 16.6629564461962 2021 15.9278312797782 2022 14.6393241183161