Year % of total labor force with advanced education 1995 1.33 1996 1.52 1997 2.295 1998 2.749 1999 2.748 2000 3.605 2001 3.891 2002 4.039 2003 3.345 2004 3.122 2005 3.864 2006 3.823 2007 2.954 2008 2.724 2009 4.366 2010 4.84 2011 4.741 2012 5.119 2013 5.439 2014 5.83 2015 4.112 2016 3.126 2017 2.422 2018 2.139 2019 1.57 2020 2.225 2021 2.088 2022 1.678 2023 1.574