Year % of total working-age population with basic education 2000 42.647 2001 40.572 2002 40.902 2003 43.538 2004 40.603 2005 42.106 2006 49.137 2007 50.5 2008 51.933 2009 54.02 2010 59.368 2011 60.099 2012 61.927 2013 64.463 2014 67.654 2015 68.974 2016 68.016 2017 66 2018 64.924 2019 65.815 2020 67.369 2021 69.844 2022 68.792 2023 66.324