Year % of total labor force (modeled ILO estimate) 1991 8.933 1992 9.012 1993 9.118 1994 8.854 1995 8.585 1996 8.06 1997 7.86 1998 7.696 1999 7.596 2000 7.534 2001 7.46 2002 6.711 2003 5.909 2004 5.088 2005 4.4 2006 3.73 2007 3.063 2008 3.385 2009 3.742 2010 4.11 2011 3.989 2012 3.837 2013 3.687 2014 3.534 2015 3.52 2016 3.534 2017 3.581 2018 3.619 2019 3.646 2020 3.866 2021 3.951 2022 3.687 2023 3.646