Year % of total employment (modeled ILO estimate) 1991 21.96764872402603 1992 21.97286990430626 1993 21.95643473255665 1994 21.88989717402079 1995 21.859105163862836 1996 21.764801163212002 1997 21.131325387171977 1998 21.053137374165022 1999 20.965396494083446 2000 20.60292486384337 2001 20.513660404542176 2002 20.47588886476184 2003 20.308935709154728 2004 20.24014899280728 2005 19.65023459926211 2006 19.493216064474893 2007 19.162051594009153 2008 18.837146556432913 2009 18.449688814835085 2010 18.19468009826056 2011 17.859686317824625 2012 17.231137843936907 2013 16.38444812434258 2014 15.92624135674625 2015 14.950481394929133 2016 13.811610386352287 2017 13.633301924731475 2018 12.999035321964458 2019 13.26046505985486 2020 14.694259061545939 2021 14.336786116037885 2022 13.950246515287667