Year % of male working-age population with basic education 1993 53.59 1994 52.803 1995 52.031 1996 52.988 1997 51.967 1998 51.641 1999 51.871 2000 51.236 2001 50.553 2002 50.654 2003 51.42 2004 51.106 2005 43.248 2006 43.007 2007 42.669 2008 42.258 2009 42.395 2010 42.153 2011 41.733 2012 41.809 2013 40.768 2014 38.918 2015 37.988 2016 37.606 2017 37.605 2018 36.874 2019 36.017 2020 35.402 2021 35.079 2022 35.297 2023 35.576