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
1982	0
1983	0
1984	0
1985	0
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	0.0354686156430729
1999	0.000507725600529967
2000	0
2001	0.000882020376149681
2002	0.00123780805294916
2003	0.000492248080616823
2004	0.000407521404380382
2005	0.000594103286320443
2006	0.00186045998816038
2007	0.00144740391759153
2008	0.00166749337302723
2009	0.00197465260379905
2010	0.00260232665255709
2011	0.00384931312798048
2012	0.00345672573555024
2013	0.00207335421990244
2014	0.00159576738192757
2015	0
2016	0
2017	0
2018	0
2019	0
2020	0
2021	0