Year % of total labor force (modeled ILO estimate) 1991 10.539 1992 10.547 1993 10.56 1994 10.552 1995 10.565 1996 10.56 1997 10.596 1998 10.608 1999 10.624 2000 10.622 2001 10.615 2002 10.655 2003 10.677 2004 10.68 2005 10.652 2006 10.659 2007 10.672 2008 10.65 2009 10.64 2010 10.629 2011 10.653 2012 10.654 2013 10.667 2014 10.647 2015 10.655 2016 10.684 2017 10.66 2018 10.63 2019 10.578 2020 13.157 2021 12.315 2022 10.922 2023 10.685