Year	current US$
1980	470416556.1156805
1981	431117021.2765958
1982	120744680.85106383
1983	105851063.82978724
1984	-57712765.957446806
1985	68882978.72340426
1986	-171542553.19148937
1987	99468085.10638298
1988	32180851.063829787
1989	186436170.21276596
1990	-105585106.38297872
1991	406648936.17021275
1992	370478723.40425533
1993	-256117021.27659574
1994	-17287234.04255319
1995	-159042553.19148937
1996	123404255.31914894
1997	347340425.5319149
1998	457180851.0638298
1999	-375531914.89361703
2000	16914893.617021278
2001	-113484042.55319148
2002	22632978.723404255
2003	18111702.127659574
2004	-262207446.80851063
2005	167473404.25531915
2006	164414893.61702126
2007	252500000
2008	109388297.87234043
2009	202952127.65957448
2010	319095744.68085104
2011	384547872.34042555
2012	402526595.7446808
2013	382952127.65957445
2014	415425531.9148936
2015	452952127.65957445
2016	1092712765.9574468
2017	1629654255.319149
2018	2193563829.787234
2019	1872500000
2020	2146344680.8510637
2021	382240159.5744681