Year	% of GDP
1970	0
1971	0
1972	0
1973	0
1974	0
1975	0
1976	0
1977	0
1978	0
1979	0
1980	0.00226100544481552
1981	0.00317426330648756
1982	0.00184907169138614
1983	0.00111310757252971
1984	0
1985	0.000295691112821829
1986	0
1987	0
1988	0
1989	0
1990	0
1991	0
1992	0
1993	0
1994	0
1995	0
1996	0
1997	0
1998	0
1999	0
2000	0
2001	0
2002	0
2003	0
2004	0
2005	0
2006	0.00124427186618525
2007	0.00248029880622356
2008	0.0206586692721846
2009	0.0174579216668107
2010	0.00555960351455087
2011	0.00936890547973611
2012	0.00951569522222702
2013	0.00488539890127828
2014	0.0043645299455326
2015	0.00380900777682929
2016	0.00235901214764391
2017	0.00171169295373714
2018	0.00179073740374302
2019	0
2020	0
2021	0