Year	% of GDP
2001	0.018824908861806603
2002	0.043373736004461406
2003	0.06673430916010299
2004	0.10160019370659844
2005	0.35122021995494895
2006	0.29754954755223134
2007	0.5628060460919005
2008	0.5574552102564101
2009	0.24243819083103116
2010	0.18770893572736266
2011	0.4034442200794467
2014	0.2951640150192959
2015	0.08175501874654646
2016	0.3075792594451102
2017	0.003957313925338493