Year % of total labor force (modeled ILO estimate) 1991 4.834 1992 4.55 1993 4.597 1994 4.593 1995 4.709 1996 4.813 1997 4.584 1998 4.636 1999 4.558 2000 4.402 2001 4.379 2002 4.369 2003 4.565 2004 4.571 2005 4.597 2006 4.622 2007 4.688 2008 4.699 2009 4.724 2010 4.692 2011 4.726 2012 4.767 2013 4.79 2014 4.88 2015 4.972 2016 5.042 2017 5.04 2018 5.018 2019 5.1 2020 5.884 2021 5.857 2022 5.854 2023 5.795