Year % of total labor force (modeled ILO estimate) 1991 4.58 1992 3.06 1993 3.097 1994 3.136 1995 3.24 1996 4.37 1997 3.32 1998 4.02 1999 3.85 2000 3.881 2001 4 2002 4.02 2003 5.3 2004 5.99 2005 4.909 2006 3.575 2007 3.211 2008 3.156 2009 3.292 2010 4.119 2011 4.475 2012 3.755 2013 5.646 2014 7.078 2015 6.147 2016 6.727 2017 5.528 2018 5.622 2019 5.551 2020 10.679 2021 7.94 2022 7.037 2023 6.062