Year	current US$
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
1999	0
2000	0
2001	0
2002	0
2003	0
2004	0
2005	221742.962485897
2006	3996590.41345835
2007	9712188.78538409
2008	40394712.8705376
2009	10302121.9563845
2010	77641319.3808118
2011	362853315.81931
2012	355189069.748547
2013	293023138.144729
2014	270222942.927124
2015	85897530.3660001
2016	75651991.902384
2017	0
2018	0
2019	0
2020	0
2021	0