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	15692682.9920298
2009	8657521.61893559
2010	1715755.66100614
2011	4306404.71563599
2012	4147969.8952763
2013	3778655.22182469
2014	3444526.11261511
2015	0
2016	853436.366370737
2017	1444976.3167527
2018	2273536.72107533
2019	1697496.15066258
2020	861345.614173166
2021	2427965.85890001