Year	% of GDP
2004	2.809786221345747
2005	2.8390112885619563
2006	3.520904353145246
2007	5.702894188563659
2008	2.699344139650733
2009	6.7353314359233405
2010	5.525295168979551
2011	4.610812091365212
2012	3.058975935673142
2014	2.769876807405866
2015	3.370312989057174
2016	3.3010585019399405