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	0
2006	0
2007	0
2008	0
2009	0
2010	4547895.38046107
2011	7563903.98501562
2012	4963218.94870541
2013	4692538.73431453
2014	5407651.98553518
2015	1666473.3511253
2016	1522080.86526333
2017	0
2018	0
2019	0
2020	0
2021	0