Year	% of GDP
2008	18.21528253043663
2009	16.655867643102763
2010	16.775721349573878
2011	15.681338933047565
2012	17.443995346658365
2013	18.196163225881296
2014	18.100303688525617
2015	20.652689956298765
2016	22.661021846153844
2017	22.63898411325746
2018	22.052098256671172
2019	23.70593780620584
2020	23.482610059995647