Year % of total employment (modeled ILO estimate) 1991 13.9661248746431 1992 13.5574746921801 1993 13.1242179456084 1994 12.5795937783018 1995 12.0083169241868 1996 11.2386814946683 1997 10.9127961431284 1998 9.10265148114476 1999 8.64111191853124 2000 7.95128639497793 2001 7.10455245848222 2002 7.03106041893429 2003 6.4951291723987 2004 6.37260735557088 2005 5.9061462083282 2006 5.70521135663329 2007 5.44098362518608 2008 5.28623052467368 2009 5.59119068278417 2010 5.75127461133386 2011 5.72373862696443 2012 5.78619080904901 2013 5.77703671681125 2014 5.44132491123487 2015 5.32098822827026 2016 5.28057388136964 2017 5.04588165999681 2018 4.76309684592386 2019 4.42878785777679 2020 4.47967563921976 2021 4.48503862631987 2022 3.99526258819692