Year	% of GDP
2009	13.539339093080377
2010	16.854525693549327
2011	19.400057058015985
2012	17.896179450767146
2013	17.6736917567704
2014	16.8619207681872
2015	14.077722281866894
2016	12.991854020087885
2017	13.452079019317269
2018	13.941435000230891
2019	14.824920602240567