Year % of total employment (modeled ILO estimate) 1991 15.274083545239064 1992 15.221793581757103 1993 15.194143258989884 1994 15.196899016230974 1995 15.260963571233209 1996 15.407389647043294 1997 15.584499674426283 1998 15.7501683395342 1999 15.94836360667133 2000 16.04085973326358 2001 16.13429155906706 2002 15.816400093906777 2003 15.530191994440864 2004 15.628140797816268 2005 15.754936286012887 2006 16.07319274174642 2007 16.372887651982044 2008 16.999426407295566 2009 17.389326940973923 2010 17.61310244611926 2011 17.937940791169044 2012 18.16084798064328 2013 18.054395357284868 2014 18.032333910325864 2015 18.014937862900485 2016 18.185997448279554 2017 18.288482286575835 2018 18.4273840619206 2019 18.50621678302185 2020 18.291810705005208 2021 18.531979294778928 2022 18.905549079344706