Year % of total labor force (modeled ILO estimate) 1991 6.357 1992 6.353 1993 6.349 1994 6.346 1995 6.342 1996 6.339 1997 6.335 1998 6.331 1999 6.328 2000 6.324 2001 7.107 2002 6.902 2003 7.488 2004 7.317 2005 6.923 2006 6.798 2007 6.472 2008 5.977 2009 6.896 2010 6.861 2011 6.388 2012 6.203 2013 6.115 2014 5.737 2015 5.389 2016 4.694 2017 4.008 2018 3.665 2019 3.627 2020 4.357 2021 3.403 2022 2.929 2023 3.125