Year % of male labor force with advanced education 1992 4.486 1993 6.213 1994 4.444 1995 4.687 1996 3.348 1997 3.106 1998 3.047 1999 2.586 2000 2.62 2001 3.651 2002 3.739 2003 4.336 2004 4.338 2005 3.538 2006 2.711 2007 2.932 2008 2.29 2009 4.122 2010 5.036 2011 4.727 2012 4.544 2013 4.701 2014 4.462 2015 4.159 2016 4.43 2017 4.401 2018 3.522 2019 3.863 2020 4.464 2021 4.177 2022 3.525 2023 3.875