Year	current US$
1987	600000.023841858
1988	800000.011920929
1989	12729999.5422363
1990	19549999.237060502
1991	93730003.3569336
1992	159830001.831055
1993	210550003.05175802
1994	143229995.727539
1995	15050000.1907349
1996	-270000.010728836
1997	319999.99284744303
1998	12920000.076293899
1999	-1169999.95708466
2000	-11350000.3814697
2001	-9220000.26702881
2002	-12000000
2003	-26530000.6866455
2004	-28309999.4659424
2005	-24469999.3133545
2006	-23100000.3814697
2007	-17149999.6185303
2008	-15069999.6948242
2009	-14510000.2288818
2010	5260000.228881841
2011	-21750000
2012	-839999.973773956
2013	29999.999329447703
2014	-230000.004172325
2015	-1659999.9666214
2016	-800000.011920929
2017	59999.9986588955
2018	-500000
2019	3160000.08583069
2020	5480000.01907349
2021	5010000.228881841
2022	12609999.6566772