Year % of total employment (modeled ILO estimate) 1991 23.0520964579591 1992 22.7587471608735 1993 22.5646178273858 1994 22.3328453228818 1995 22.1299356815496 1996 21.7767979938807 1997 21.438096896596 1998 21.086325890303 1999 20.6678334029328 2000 20.2640531404257 2001 19.8652193025814 2002 19.6589106201493 2003 19.2478799970523 2004 18.7558823054873 2005 18.5251915261202 2006 19.4381984731359 2007 18.7020423864381 2008 18.0217452818055 2009 18.4712188357519 2010 17.9460990980078 2011 16.3611776809862 2012 17.0738047208224 2013 15.3647603454432 2014 14.8672966763635 2015 14.7513386946901 2016 14.7653815482021 2017 14.8123065617095 2018 14.5300782654341 2019 14.2704949854784 2020 14.5174226869207 2021 14.3885058596793 2022 14.0120158612492