Year % of male labor force with basic education 1997 4.157 1998 4.614 1999 4.623 2000 3.016 2001 3.964 2002 3.467 2003 3.014 2004 3.225 2005 3.938 2006 3.204 2007 3.309 2008 2.876 2009 3.321 2010 2.623 2011 2.878 2012 2.163 2013 2.541 2014 2.178 2015 2.561 2016 2.859 2017 2.943 2018 2.352 2019 2.644 2020 4.86 2021 2.972 2022 2.832 2023 3.094