Year % of total employment (modeled ILO estimate) 1991 26.8104381230072 1992 26.6951890650255 1993 26.5815722125803 1994 26.4099111395407 1995 26.1058792593204 1996 25.8123793221709 1997 25.5641956247926 1998 25.081936897209 1999 22.1361454167994 2000 21.6153000029501 2001 21.8081612785386 2002 19.7472141872497 2003 18.2418716824631 2004 19.1294032533851 2005 19.992303478375 2006 18.8601955877394 2007 18.0201937918211 2008 18.6878788387451 2009 20.9083205175197 2010 20.7782421276402 2011 21.5936027073005 2012 20.9704530796517 2013 19.5858267480347 2014 18.7644350547107 2015 18.1104974881509 2016 18.6788345678394 2017 18.5748187832526 2018 16.7082474585578 2019 16.2939567497318 2020 15.7957344379758 2021 14.8723074797535 2022 14.9736929472953