Year % of total employment (modeled ILO estimate) 1991 40.2849772110131 1992 39.9336882859622 1993 39.5958374156017 1994 39.2072881111346 1995 38.7251745719671 1996 38.1823532023228 1997 37.6091599751884 1998 37.5765973854616 1999 37.2776534222456 2000 36.7497035639506 2001 36.6187090049335 2002 36.0652077937238 2003 35.1190350137582 2004 34.5942053866239 2005 33.9853851701149 2006 33.0942618396335 2007 32.1074666554224 2008 31.3760027826706 2009 30.1359774013692 2010 29.0924749706619 2011 28.3996065722792 2012 28.1538242380854 2013 27.2944581413215 2014 26.5929939334684 2015 25.8533884595019 2016 25.5062889977416 2017 25.3179783122611 2018 25.1202176993008 2019 24.6369894091753 2020 24.4281241007504 2021 23.9062608865945 2022 23.452051295509