Year % of total employment (modeled ILO estimate) 1991 2.83249084887572 1992 2.71047401581462 1993 2.83644274777826 1994 1.85451351459257 1995 1.81497932302037 1996 2.03093325324724 1997 1.8638089547636 1998 1.07561805051393 1999 1.08409810551173 2000 0.962629353319352 2001 1.05157736604907 2002 1.10350535372519 2003 1.10749410082847 2004 1.12238469445273 2005 1.17596985986096 2006 1.21694464768333 2007 1.29100438427374 2008 1.35789023835454 2009 1.42415205819236 2010 1.46710837671557 2011 1.52781060153198 2012 1.58683592916578 2013 1.65695333506217 2014 1.6879154843265 2015 1.76938266472667 2016 1.84242117899791 2017 1.89503294100229 2018 1.9744468986052 2019 0.251285784739673 2020 1.6471198082032 2021 0.321726433538743 2022 0.314584989801915