Year % of total working-age population with basic education 1996 42.72283119780866 1997 42.66768462712992 1999 43.91101901158952 2000 45.63175104838396 2001 44.68084905457948 2002 44.78563028469665 2003 44.72800325576324 2004 44.49991164214147 2005 44.69961582824089 2006 45.54968812550339 2007 45.48913193820511 2008 44.86433680364688 2009 44.93660089140692 2010 44.68161287722566 2011 44.496583285351385 2012 44.251734370021424 2013 43.62636737446555 2014 42.42980260455132 2015 41.95507932060618 2016 41.5536114990352 2017 42.72893385981986 2018 42.57158310186493 2019 42.581376896983336 2020 41.48695270496823 2021 41.667406218368534 2022 42.2085609667828 2023 42.57496829169577