Year % of total labor force (modeled ILO estimate) 1991 4.427886457075003 1992 4.487000867205936 1993 4.672383449052998 1994 4.923446607994305 1995 5.189202766078334 1996 5.307321114706507 1997 5.37926194797854 1998 5.587324082474022 1999 5.789750883326577 2000 5.805308294417966 2001 5.9966197167679915 2002 6.210043484306429 2003 6.308000441649343 2004 6.215345858037835 2005 6.221764956692385 2006 6.031465710337386 2007 5.940770808717675 2008 5.930159414644695 2009 6.109226048160874 2010 5.908406133262824 2011 5.82196068633655 2012 5.832696090934913 2013 5.776349125236817 2014 5.741887106726046 2015 5.913213323956878 2016 5.981925558715341 2017 6.003382969905494 2018 5.92839217387876 2019 5.78935121664157 2020 6.614728873778262 2021 6.147954031089901 2022 5.452796774079603 2023 5.098924288827315