Year	current US$
1982	-34962531.6024803
1983	-27422405.3988204
1984	-13964291.7126094
1985	-31365561.0405551
1986	10437946.3366041
1987	12497262.6226734
1988	15647564.7987984
1989	3535900.93156111
1990	22697240.7843128
1991	-3317583.93634911
1992	1309763.67904153
1993	3080197.21572241
1994	4304325.18746329
1995	10134607.4902036
1996	2846173.35861205
1997	25733854.6531855
2001	-16174284.4474413
2002	2467490.08633686
2003	5957828.02440297
2004	14517572.0478055
2005	-15192388.2529943
2006	-9070954.26593852
2007	22208164.4242637
2008	30252689.4419268
2009	-11033491.8013164
2010	-76531500.5517747
2011	56103991.7914846
2012	-38874292.270344
2013	-52856191.2894278
2014	64821559.561805
2015	52446192.8111576
2016	35796272.2834679
2017	54684517.7470398
2018	132737551.488683
2019	100186347.451586
2020	129017135.354772