Year % of total employment (modeled ILO estimate) 1991 1.41074967937507 1992 1.3940870978037 1993 1.37427843056817 1994 1.35253637728333 1995 1.32126000562238 1996 1.28749668170958 1997 1.24907063197026 1998 1.20584705695242 1999 1.16407982261641 2000 1.12499610458413 2001 1.07364353164833 2002 1.02738089549386 2003 1.00028089010955 2004 0.96902472841406 2005 0.937779326435075 2006 0.909304926137367 2007 0.887928965682745 2008 0.866028486151277 2009 0.838740543611518 2010 0.822055285800729 2011 0.80036588154585 2012 0.77895619869375 2013 0.763528210591734 2014 0.749735262972114 2015 0.740482011875655 2016 0.732610783372205 2017 0.727447085416809 2018 0.7281686285245 2019 0.736640699740331 2020 0.727368816321989 2021 0.703472720139612 2022 0.681772875274105