Year % of total working-age population with advanced education 2004 78.888 2005 77.877 2006 75.973 2007 76.248 2008 76.534 2009 76.855 2010 77.762 2011 78.391 2012 78.11 2013 79.194 2014 79.073 2015 79.604 2016 79.551 2017 80.035 2018 79.316 2019 79.192 2020 74.906 2021 76.549 2022 77.42 2023 77.58