Year % of total employment (modeled ILO estimate) 1991 17.958445801198113 1992 18.19777126480442 1993 18.115201144023157 1994 18.346965831409527 1995 18.30032102474055 1996 18.178702977477055 1997 18.063331909953728 1998 17.813905690267188 1999 17.459939602406344 2000 17.067655858216597 2001 16.88955856528788 2002 16.786399983123633 2003 16.93815196944141 2004 16.92373467491198 2005 16.815297289364356 2006 16.714506629406465 2007 16.45497758853198 2008 16.12178646616714 2009 16.08420690747147 2010 16.14966891667738 2011 15.989277326102764 2012 15.942784793768512 2013 15.848662809160167 2014 15.720235134353588 2015 15.52947904171608 2016 15.266125821979289 2017 14.970637424137337 2018 14.66886956130159 2019 14.56527111243464 2020 14.505098276603023 2021 14.322874618202137 2022 14.421714722816985