Year % of total working-age population with intermediate education 2005 71.25 2006 68.768 2007 65.304 2008 68.369 2009 66.394 2010 67.644 2011 65.282 2012 63.646 2013 67.17 2014 67.477 2015 68.725 2016 67.988 2017 69.419 2018 73.09 2019 69.504 2021 72.752 2022 71.743 2023 67.636