Year % of total employment (modeled ILO estimate) 1991 23.8770925092864 1992 23.1816328379157 1993 22.5100367929061 1994 22.6692627039408 1995 22.9279968184437 1996 22.7503939647691 1997 23.0570689511101 1998 23.1172566720744 1999 23.1216177950003 2000 23.2941717724786 2001 23.0628245986799 2002 23.2298609084546 2003 22.9734168597968 2004 23.0487901170324 2005 22.6904978612539 2006 22.1061931059389 2007 21.6658949425158 2008 21.4598972700744 2009 20.285225596963 2010 20.1505184031391 2011 20.2853836490512 2012 20.4625882943372 2013 20.3270942411845 2014 20.1770573267297 2015 19.9230612336162 2016 19.4780903564972 2017 19.5336644361838 2018 19.5713080198757 2019 19.2511277447317 2020 19.2647202963475 2021 19.2657927519526 2022 19.1613479099063