Year % of total working-age population with advanced education 1999 87.678 2000 88.188 2001 88.401 2002 88.039 2003 88.504 2004 86.859 2005 85.823 2006 86.282 2007 86.24 2008 85.685 2009 85.128 2010 84.125 2011 83.376 2012 83.985 2013 83.746 2014 84.098 2015 83.911 2016 81.93 2017 81.769 2018 81.874 2019 82.879 2020 82.438 2021 82.435 2022 82.881 2023 83.542