Year % of total employment (modeled ILO estimate) 1991 39.5275029614987 1992 39.3117934020351 1993 39.0633324979836 1994 38.8627123848985 1995 38.5602245903484 1996 38.2695165711272 1997 37.944760239469 1998 37.5190044308747 1999 37.0311632153645 2000 36.5539656780733 2001 36.0751387678506 2002 35.4840426486036 2003 34.9105128867421 2004 34.3696657027322 2005 33.780897987766 2006 33.1428533514827 2007 32.5321076784121 2008 31.926480433957 2009 31.3329622687734 2010 30.7175354204516 2011 30.1256299701274 2012 22.4941659514958 2013 28.1390771538691 2014 33.9608228478797 2015 33.3103549512225 2016 32.7094138124431 2017 32.1102783649213 2018 31.4846073887149 2019 30.853058754434 2020 30.7942580237045 2021 30.2581758929249 2022 29.7612448950305