Year % of total secondary 2006 42.4107093811035 2007 40.850658416748 2008 40.5119285583496 2009 40.2961883544922 2011 35.9951705932617 2012 36.261360168457 2014 40.1502799987793 2015 41.0382995605469 2016 40.8970184326172 2017 42.4201583862305 2018 42.745231628418 2019 43.0984497070312