Year % of total labor force (modeled ILO estimate) 1991 9.523288919951625 1992 10.134858414464587 1993 11.527303778728319 1994 11.37297954763006 1995 10.846194645951568 1996 10.193569548462055 1997 9.202350594827129 1998 9.017686801229349 1999 10.417627683008506 2000 12.41386331935282 2001 13.22255987691457 2002 13.75372689761483 2003 13.000684734594058 2004 12.920854074602934 2005 12.060159550528338 2006 10.105444696389204 2007 7.811113998131882 2008 6.606591481051231 2009 8.486187280710693 2010 9.898521714673729 2011 9.789258876077863 2012 9.979371910039438 2013 10.048187090518644 2014 8.864137335246715 2015 7.822656643665438 2016 6.49345477676331 2017 5.2976471193954335 2018 4.31558554732781 2019 3.7808472070476364 2020 4.373788355941904 2021 4.486592812806735 2022 4.006651675103616 2023 4.0812572470834185