Year % of total employment (modeled ILO estimate) 1991 20.392440970071146 1992 20.298080930330084 1993 20.234549638047493 1994 20.21217753753417 1995 20.233623127747677 1996 20.318647542204886 1997 20.419937594307758 1998 20.50484669816265 1999 20.647901214105175 2000 20.779974263546297 2001 20.83825862376178 2002 20.61723275973294 2003 20.422257142397374 2004 20.47937432521897 2005 20.495112962831715 2006 20.652640976966698 2007 21.014982509950936 2008 21.351642682779175 2009 21.48045113332533 2010 21.343735702098684 2011 21.73905653630426 2012 22.137376665932095 2013 22.359226930821357 2014 22.514276662330747 2015 22.630685883196495 2016 22.579607929672992 2017 22.466130157475277 2018 22.459266289910506 2019 22.352083741127103 2020 21.846076151897073 2021 21.9392023999738 2022 22.225163562929225