Year % of total working-age population with advanced education 2005 79.912 2006 81.697 2007 80.276 2008 80.68 2009 81.333 2010 78.629 2011 81.053 2012 79.515 2013 79.547 2014 79.267 2015 80.494 2016 81.335 2017 81.498 2018 81.379 2019 81.066 2020 81.034 2021 80.268 2022 80.337