Year % of total employment (modeled ILO estimate) 1991 20.0505272188582 1992 20.64683943107042 1993 21.45191227470327 1994 21.37300376785553 1995 21.066207510919376 1996 19.69904592247481 1997 18.98444327194181 1998 17.98986351664138 1999 18.6622000665708 2000 17.84626262778222 2001 17.69673866694112 2002 17.00002506005462 2003 16.60701503221188 2004 16.064789311407985 2005 15.787697470174518 2006 15.665966594800848 2007 15.85043646706882 2008 15.88922664107708 2009 16.20229408168292 2010 16.556326928620095 2011 17.332653838124582 2012 15.899786614239305 2013 16.231629418959447 2014 16.791012889423833 2015 16.75958838936821 2016 18.18348285133256 2017 18.838674081192963 2018 19.447840973911163 2019 20.153704841374424 2020 21.641415943481363 2021 20.705423236715955 2022 20.682206586503685