Year	% of GDP
1970	0
1971	0
1972	0
1973	0
1974	0
1975	0
1976	0
1977	0
1978	0
1979	0
1980	0
1981	0
2002	0
2003	0
2004	0
2005	0
2006	0
2007	0
2008	0
2009	0
2010	0
2011	0
2012	0
2013	0.00231624131877265
2014	0.00299451617981368
2015	0.00198882413948307
2016	0.00281249304025955
2017	0
2018	0
2019	0
2020	0
2021	0