Year Percent of total labor force (Units) 1995 4.000 1996 3.900 1997 4.775 1998 6.491 1999 8.720 2000 8.757 2001 8.113 2002 7.270 2003 7.770 2004 8.344 2005 7.932 2006 7.128 2007 5.306 2008 4.377 2009 6.703 2010 7.284 2011 6.708 2012 6.975 2013 6.949 2014 6.111 2015 5.021 2016 3.946 2017 2.890 2018 2.176 2019 1.960 2020 2.512 2021 2.732 2022 2.166 2023 2.579 2024 2.560 2025 2.500 2026 2.400 2027 2.400 2028 2.400 2029 2.400