Year % of total labor force (modeled ILO estimate) 1991 1.482 1992 2.029 1993 2.33 1994 3.48 1995 2.918 1996 3.286 1997 2.527 1998 2.763 1999 2.39 2000 2.345 2001 1.805 2002 2.621 2003 3.675 2004 5.113 2005 4.488 2006 4.731 2007 4.065 2008 5.06 2009 5.122 2010 4.361 2011 4.902 2012 5.14 2013 5.848 2014 5.852 2015 6.669 2016 6.291 2017 5.522 2018 5.585 2019 5.595 2020 6.773 2021 5.247 2022 4.585 2023 5.188