Year % of total employment (modeled ILO estimate) 1991 35.649214853493426 1992 35.78713012359109 1993 35.89585936596813 1994 36.42646006622818 1995 37.04475662334014 1996 37.70460841742529 1997 37.53576575083197 1998 37.477880602531876 1999 37.3507527599866 2000 37.54885134833311 2001 38.183468399428826 2002 37.63257827592437 2003 37.39221610214631 2004 37.10377293087911 2005 36.80070553721615 2006 36.3747415480416 2007 35.57836429280572 2008 35.03654308145639 2009 35.38630971611607 2010 35.2737938741817 2011 35.18544382152062 2012 34.586741899235186 2013 34.39334505676855 2014 32.98344250611571 2015 32.57448182993427 2016 32.27519598558994 2017 32.06507644809717 2018 31.84003575493552 2019 31.778441389950366 2020 31.439609061275224 2021 31.467687544563635 2022 34.38539569284235