Year % of total working-age population with basic education 2001 49.143 2002 49.315 2003 50.514 2004 49.947 2005 49.156 2006 49.334 2007 49.742 2008 49.494 2009 66.36 2010 64.76 2011 64.78 2012 65.44 2013 52.14 2014 51.49 2015 49.54 2016 49.27 2017 49.4 2018 43.018 2019 43.275 2020 40.46 2021 39.375