Year	% of GDP
2011	20.5606248046762
2012	15.875634987879256
2013	15.424203684126
2014	17.05044003729764
2015	13.488738654651568
2016	14.672820164345556
2017	16.828169039092312
2018	15.090908769287216
2019	16.272157110606774
2020	14.175460948315317
2021	15.136710327115349