Year % of total employment (modeled ILO estimate) 1991 38.39272238196733 1992 38.11122274687946 1993 37.92064998452059 1994 37.25968862112723 1995 37.00583403250307 1996 36.61357695572969 1997 36.431645707218756 1998 36.08659978891784 1999 35.540153017180536 2000 35.43459912858403 2001 34.86380276797713 2002 35.16129727554039 2003 35.35307409460995 2004 35.78232279276889 2005 35.256059996531214 2006 34.290461130262685 2007 34.83448373316272 2008 33.47829165706193 2009 33.29904456122369 2010 32.32736723887366 2011 32.29055025142689 2012 31.718202233542463 2013 32.94095000553611 2014 32.54772250565833 2015 32.37453271211818 2016 30.945400925436836 2017 30.964949075939515 2018 30.95683012647518 2019 30.94822322379073 2020 30.58616257080166 2021 31.580925183796268 2022 31.418369079458476