Year % of male labor force with advanced education 1991 1.31 1992 1.631 1993 1.602 1994 1.63 1995 1.686 1996 2.9 1997 3.875 1998 2.099 1999 1.267 2000 1.095 2001 0.781 2002 2.036 2003 2.884 2004 2.364 2005 2.287 2006 2.055 2007 1.784 2008 1.604 2009 2.306 2010 2.713 2011 2.406 2012 2.702 2013 3.016 2014 3.31 2015 3.604 2016 3.083 2017 3.131 2018 2.877 2019 2.666 2020 3.016 2021 2.991 2022 2.8 2023 2.677