Year % of total labor force (modeled ILO estimate) 1991 3.259 1992 3.382 1993 3.236 1994 3.1 1995 3.021 1996 3.137 1997 3.245 1998 3.489 1999 3.714 2000 3.502 2001 3.174 2002 3.061 2003 3.002 2004 2.771 2005 2.497 2006 2.346 2007 2.344 2008 2.333 2009 2.331 2010 2.299 2011 2.274 2012 2.255 2013 2.251 2014 2.364 2015 2.45 2016 2.566 2017 2.678 2018 2.825 2019 2.945 2020 4.024 2021 3.935 2022 3.493 2023 3.497