Year % of total employment (modeled ILO estimate) 1991 39.734744871006 1992 39.3175426308447 1993 39.5652968710162 1994 40.053278739842 1995 40.5645099579444 1996 40.8263881844795 1997 41.9019970893242 1998 42.2916763393826 1999 42.6792530150032 2000 42.7998216674097 2001 42.1484916704831 2002 41.8809371103287 2003 41.7470354572895 2004 41.4693379160637 2005 41.0558663878867 2006 40.5135607027738 2007 39.4089696187993 2008 37.3043751825535 2009 36.4745071207452 2010 35.804412455727 2011 34.6662434072459 2012 33.8636945182012 2013 33.3711984047065 2014 32.9014737358727 2015 32.7281178516664 2016 32.400272504218 2017 32.2881877388041 2018 32.1183618500065 2019 32.0274113368561 2020 32.2819496176937 2021 32.1398582625878 2022 31.9515454720553