Year	current US$
1970	2069784.08073256
1971	62955.2963133383
1972	0
1973	45746.767259368
1974	692612.15702177
1975	0
1976	356235.829159611
1977	189066.022203222
1978	0
1979	0
1980	0
1981	0
1982	7210.95804139638
1983	3139.35470515028
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	0
2011	0
2012	0
2013	0
2014	0
2015	0
2016	0
2017	0
2018	0
2019	0
2020	0
2021	0