Year	% of GDP
2006	8.807277248635403
2007	0.30855229818817076
2008	-5.321364950157559
2009	-1.3682212968262724
2010	4.35878649121336
2011	4.59100514099058
2012	0.04294740702855024
2013	5.955474144241398
2014	8.363672894999928
2015	5.322758185154905
2016	5.505481687552354
2017	7.311483151508746
2018	-11.155497723855373