Year	% of GDP
2005	0.22050541296348863
2006	0.04997701489525779
2007	0.03767033714977281
2008	0.2854174143301411
2009	0.1568239477533625
2010	0.07718448522869825
2011	0.5132076179864277
2012	0.28336660564297106
2013	0.2336291107358542
2014	0.28622770016951077
2015	0.25530519009164