Year	current US$
1970	0
1971	0
1972	0
1973	0
1974	0
1975	0
1976	0
1977	0
1978	0
1979	19508.2083089439
1980	65639.1351410442
1981	63633.9157799357
1982	37921.9157750081
1983	75799.1018063656
1984	89567.9127243188
1985	598816.301010909
1986	118730.108141808
1987	118915.203754788
1988	69354.126847251
1989	16310.1196539749
1990	14805.7299575584
1991	21686.1078032193
1992	13653.7997316634
1993	7533.02040483568
1994	0
1995	61830.8427862587
1996	47234.4325959369
1997	37998.0061010723
1998	2407123.43333928
1999	4424779.69447886
2000	532997.045822923
2001	395236.068853583
2002	246891.752091068
2003	230075.553915293
2004	26117.1095219828
2005	32562.4014255034
2006	56116.337537778
2007	0
2008	0
2009	1253601.81953728
2010	1779843.26925375
2011	32970513.8068738
2012	38581564.8452845
2013	20448110.2948345
2014	12474184.0330155
2015	174811.306862566
2016	149540.855329952
2017	1330447.86891659
2018	2830598.6191166
2019	0
2020	0
2021	0