Year % of total secondary 2000 16.8588695526123 2001 15.4681596755981 2002 14.3961400985718 2003 13.6233901977539 2004 13.4556703567505 2005 13.5173997879028 2006 13.2427797317505 2007 13.4919300079346 2008 13.5174999237061 2009 13.444299697876 2010 12.6476001739502 2011 12.7544603347778 2012 12.6332702636719 2013 12.5263500213623 2014 12.1895503997803 2015 11.8986902236938 2016 11.7860698699951 2017 11.683819770813 2018 11.499119758606 2019 11.3390398025513 2020 11.1989698410034 2021 10.2124795913696 2022 10.3918104171753