Year % of total employment (modeled ILO estimate) 1991 6.47680894412058 1992 6.41720318150804 1993 6.44735682285918 1994 6.13798814897182 1995 6.19392433861351 1996 6.065328914639 1997 5.9496125501944 1998 5.75901256315555 1999 5.75218149804732 2000 5.54972666215991 2001 5.27703003170325 2002 5.13226344267233 2003 5.10633008081086 2004 5.25817064733623 2005 5.37597046580371 2006 5.19545283238723 2007 5.07744789962717 2008 5.11715436662218 2009 5.10823433062176 2010 5.0187006494685 2011 4.85842976195494 2012 4.71476112220434 2013 4.72935099076919 2014 4.6303916971885 2015 4.74666051505563 2016 4.59580524912844 2017 4.59579013113357 2018 4.62582251879722 2019 4.39306041793407 2020 4.23467270936204 2021 3.95623919861461 2022 3.71932672643574