Year Percent of total labor force 1995 16 1996 15.5 1997 15.4 1998 15.2 1999 13.942 2000 13.395 2001 12.256 2002 11.334 2003 11.432 2004 10.796 2005 11.058 2006 9.672 2007 9.795 2008 9.568 2009 9.095 2010 9.063 2011 8.912 2012 8.988 2013 9.235 2014 9.879 2015 9.707 2016 9.9 2017 10.2 2018 9.8 2019 9.23 2020 8.86 2021 8.46 2022 8.36 2023 8.26 2024 8.1