Year % of total employment (modeled ILO estimate) 1991 21.36261706394776 1992 21.241166136070714 1993 21.03874969509418 1994 20.88870752174743 1995 20.677943899429486 1996 20.416565125134298 1997 20.108707099266933 1998 19.905949540104427 1999 19.577727322549723 2000 19.264163374132167 2001 18.904464631769944 2002 18.493738067172906 2003 18.23737527422832 2004 17.754030567710334 2005 17.226613078897238 2006 16.793508941453215 2007 16.372703374075268 2008 15.966865488710594 2009 15.62702982768292 2010 15.342352500513972 2011 14.968591857567233 2012 14.515974815281904 2013 13.918154483256657 2014 13.501496191163062 2015 12.890612145363027 2016 12.266591218157098 2017 12.01626647396274 2018 11.594965977690096 2019 11.52660260279877 2020 12.21289366512216 2021 11.924746158391349 2022 11.672918105196938