Year % of total employment (modeled ILO estimate) 1991 31.959861049405802 1992 32.721205060405396 1993 33.249187183419096 1994 33.8288114733186 1995 36.9691178684936 1996 35.7875488756724 1997 39.146953781550195 1998 40.839333022002 1999 43.2486812683393 2000 45.0130930361437 2001 44.8726865223976 2002 38.3659834454915 2003 38.2303221892504 2004 33.0377922515473 2005 33.699707621712 2006 32.2548264923202 2007 32.2813513533424 2008 31.24704618786 2009 31.3607444530663 2010 33.846888195589 2011 32.005508409768495 2012 32.1215151566442 2013 31.5499292243087 2014 30.9373848914443 2015 27.85040755667121 2016 25.57418241143503 2017 24.906080447094368 2018 24.168941611128368 2019 23.08450176624359 2020 22.62575721373459 2021 22.35768015152092 2022 22.07098173471067