Year % of male working-age population with basic education 1992 48.575 1993 47.302 1994 47.17 1995 46.001 1996 44.59 1997 43.907 1998 45.092 1999 45.522 2000 45.54 2001 43.657 2002 43.32 2003 42.45 2004 41.872 2005 42.077 2006 42.928 2007 42.053 2008 41.425 2009 40.461 2010 42.026 2011 40.616 2012 40.089 2013 39.608 2014 39.29 2015 38.019 2016 36.791 2017 38.768 2018 35.362 2019 37.152 2020 34.067 2021 34.807 2022 34.844 2023 33.62