Year % of GDP 2008 23.248988265224167 2009 23.93809639557879 2010 32.36315559834508 2011 25.49509149324872 2012 26.846582466617846 2013 22.895426263808368 2014 21.515751139789828 2015 61.97142143683252 2016 66.37705890223745 2017 77.989280486067 2018 83.78839453273783 2019 85.23669515548694