Year % of total labor force with advanced education 1990 1.43 1992 3.291 1995 2.567 1996 3.239 1997 3.531 1998 3.794 1999 4.498 2001 4.004 2002 3.949 2003 4.399 2004 4.062 2005 4.2 2006 4.129 2007 4.306 2008 4.211 2009 4.366 2011 3.848 2012 1.083 2013 1.392 2014 1.297 2015 5.079 2016 6.272 2017 6.929 2018 6.755 2019 6.733 2020 7.429 2021 7.523 2022 5.064 2023 4.247