Year % of total employment (modeled ILO estimate) 1991 28.14166849151135 1992 28.209248166942952 1993 28.383576788810913 1994 28.831710891801258 1995 29.141815887063892 1996 29.62185087740587 1997 29.949211548063793 1998 30.04829045839604 1999 30.00422646918952 2000 29.86152452629029 2001 29.46423474238622 2002 29.042525479469848 2003 28.58813371096223 2004 28.10333864670739 2005 27.6870290816395 2006 27.1337117647411 2007 26.594180670178503 2008 29.089936994345898 2009 31.5734919439979 2010 30.9335466006415 2011 30.414991456761598 2012 29.7433044641378 2013 28.9614305167147 2014 28.257204288521798 2015 27.418834550049603 2016 26.5213871952756 2017 25.787389296332798 2018 24.9180004560116 2019 24.2493619295726 2020 24.2439576425921 2021 23.921381003386898 2022 23.592107170149397