Year % of total employment (modeled ILO estimate) 1991 19.9776730203686 1992 19.1052002946788 1993 19.4216819402593 1994 21.7931007621515 1995 23.1548591727537 1996 22.0338077762588 1997 22.3734454875371 1998 21.6842429727841 1999 22.2477301839783 2000 22.8121268536262 2001 22.8947581237586 2002 23.4636850995598 2003 23.5824665092488 2004 24.4118950294525 2005 27.3811347463118 2006 27.1267730081061 2007 27.2323763896547 2008 27.2505325473826 2009 25.838756226544 2010 24.8448568622451 2011 24.8091045964151 2012 26.0702905136411 2013 25.8347555616725 2014 26.345291793535 2015 25.7716410079899 2016 26.3913700013179 2017 28.4045252287532 2018 27.9378132781745 2019 27.6067196949906 2020 26.9123885298182 2021 27.1241232716165 2022 27.041991449477