Year % of total employment (modeled ILO estimate) 1991 24.5943831522761 1992 24.9377492370771 1993 25.2733821431235 1994 25.8925221758527 1995 26.2899352773092 1996 26.6756480931038 1997 27.2507561481898 1998 27.5365653747665 1999 27.6694338029141 2000 27.3356924201995 2001 27.6087573799387 2002 27.6760439034671 2003 27.4866538156253 2004 27.3254291318849 2005 27.7119233286073 2006 27.6332399318903 2007 27.6750131900731 2008 27.2243778512394 2009 26.7488316230327 2010 26.7148008954122 2011 26.8135516765818 2012 26.9642678772806 2013 26.6915870867172 2014 27.428609244295 2015 27.2191252369457 2016 27.2869151842971 2017 26.9058363956652 2018 26.9876104809163 2019 27.1783887257005 2020 27.2118854510537 2021 27.5025706393922 2022 27.8923438038596