Year	% of GDP
2003	6.149457494565263
2004	4.6853154969083795
2005	6.530291056852827
2006	4.705703909088336
2007	10.160234297067705
2008	8.576550660946234
2009	11.71678306141998
2010	12.317290085181803
2011	15.90580763117223
2012	16.690262584794553
2013	14.928459432131946
2014	11.26285010256331
2015	12.240380392640834
2016	10.831120658156026
2017	10.679267990834052