Year % of total employment (modeled ILO estimate) 1991 2.90733638500557 1992 2.93389712731197 1993 2.96654057251844 1994 3.00472734749609 1995 3.05044246674687 1996 3.0691502917253 1997 3.11203498006474 1998 3.15874847193791 1999 3.21899956019537 2000 3.28151624028714 2001 3.35220703490949 2002 3.40740013169048 2003 3.44802679279199 2004 3.53696711821661 2005 3.41677529642627 2006 3.24177698244805 2007 3.21481577203893 2008 1.74710182347061 2009 1.45972318479042 2010 1.56847227832414 2011 1.88528423047846 2012 1.52536598414686 2013 1.73862145014871 2014 1.94988132553394 2015 2.36194179915654 2016 2.701921108677 2017 2.9846389486072 2018 3.29439587561723 2019 3.06898743690269 2020 3.07600822161959 2021 3.05381900577884 2022 3.01068921003747