Year % of total labor force (modeled ILO estimate) 1991 4.633 1992 4.657 1993 4.71 1994 4.623 1995 4.674 1996 4.649 1997 4.741 1998 4.758 1999 4.709 2000 4.705 2001 4.698 2002 4.77 2003 4.739 2004 4.7 2005 3.886 2006 3.957 2007 4.103 2008 4.182 2009 4.302 2010 4.342 2011 4.406 2012 4.375 2013 4.356 2014 4.325 2015 4.292 2016 4.32 2017 4.328 2018 4.34 2019 4.38 2020 4.623 2021 4.678 2022 4.481 2023 4.327