Year	Percent of GDP
2001	0
2002	0
2003	0
2004	0
2005	0
2006	0
2007	0
2008	0
2009	0
2010	0
2011	0
2013	0.113
2014	0.548
2015	1.493
2016	3.062
2017	3.835
2018	5.44