Year % of total employment (modeled ILO estimate) 1991 20.39244097007115 1992 20.298080930330077 1993 20.234549638047493 1994 20.212177537534178 1995 20.233623127747673 1996 20.318647542204882 1997 20.419937594307758 1998 20.504846698162655 1999 20.647901214105186 2000 20.77997426354629 2001 20.83825862376179 2002 20.617232759732936 2003 20.42225714239738 2004 20.479374325218963 2005 20.49511296283171 2006 20.652640976966698 2007 21.01498250995094 2008 21.351642682779175 2009 21.480451133325328 2010 21.343735702098687 2011 21.739056536304254 2012 22.137376665932095 2013 22.359226930821357 2014 22.514276662330747 2015 22.63068588319649 2016 22.579607929672985 2017 22.466130157475277 2018 22.459266289910506 2019 22.352083741127103 2020 21.846076151897073 2021 21.939202399973798 2022 22.22516356292923