Year % of total working-age population with intermediate education 2009 68.3 2010 66.927 2011 66.573 2012 66.981 2013 67.821 2014 67.859 2015 67.927 2016 67.608 2017 67.547 2018 67.786 2019 66.929 2020 64.96 2021 64.94 2022 64.074 2023 62.434