Year % of total working-age population with advanced education 1991 82.343 1992 80.132 1993 79.972 1994 79.323 1995 80.568 1996 83.761 1997 84.383 1998 83.923 1999 83.529 2000 83.325 2001 84.716 2002 83.875 2003 83.913 2004 83.509 2005 83.808 2006 83.583 2007 83.123 2008 83.121 2009 83.069 2010 81.001 2011 81.279 2012 81.621 2013 81.296 2014 80.685 2015 80.574 2016 80.987 2017 81.037 2018 81.36 2019 81.693 2020 81.272 2021 80.548 2022 79.301 2023 80.356