Year % of total employment (modeled ILO estimate) 1991 3.2606643560057127 1992 3.279031554198833 1993 3.2815737239716687 1994 3.294883071653098 1995 3.3493261972917363 1996 3.370481388030674 1997 3.3977615271505086 1998 3.419675142461702 1999 3.5502974880620077 2000 3.5368210209827984 2001 3.666829091872824 2002 3.7416267714622005 2003 3.7483815695991147 2004 3.803193293199847 2005 3.8149917913031226 2006 3.851424747873727 2007 3.9360363439352546 2008 3.9184231231767175 2009 3.9515369256908373 2010 3.888741472788569 2011 3.8737710313515086 2012 3.8745599720623827 2013 3.8719799295135715 2014 3.827624093962723 2015 3.8356323967988737 2016 3.809496374954846 2017 3.7777188034006857 2018 3.7431415081645576 2019 3.6465122964534693 2020 3.583970659771948 2021 3.507238927945651 2022 3.4575563425461104