Year % of total employment (modeled ILO estimate) 1991 3.27979511405831 1992 3.22323396646443 1993 3.2100361321257 1994 3.27181223507826 1995 3.30438352415272 1996 3.25891010890428 1997 3.2837619195153 1998 3.20473378421045 1999 3.41308919832149 2000 3.41177655627342 2001 3.35032347748562 2002 3.57816498907044 2003 3.49962941612452 2004 3.5596846464715 2005 3.58025134220564 2006 3.73135581631356 2007 3.77623827347712 2008 3.58163189496221 2009 3.54911816305376 2010 3.50296026820743 2011 3.61391237200788 2012 3.6684679643005 2013 3.73682410980316 2014 3.78507006149056 2015 3.83770509209966 2016 3.7996686306997 2017 3.76610008523791 2018 3.72235207767117 2019 3.69186156345638 2020 3.76168776176842 2021 3.74995478541635 2022 3.72423441346669