Year	% of GDP
1997	1.6465784100638874
1998	-0.12544553075406703
1999	0.19228394517261455
2000	0.6503284737965613
2001	0.0749175906502847
2002	1.3412017167381975
2003	1.0999404490839668
2004	2.5253707643292653
2005	0.19877978469826002
2006	2.0210443875590105
2007	1.612352740411209
2008	1.7022369710981446
2009	4.1521183142444125
2010	3.9441961262359473
2011	2.8958963944978735
2012	1.9274473957773237
2013	2.368728121353559
2014	1.9472290523926614
2015	1.1369688549264791
2016	1.1383470576970427