Year	current US$
1981	19999.9995529652
1982	540000.021457672
1983	709999.978542328
1984	1720000.02861023
1985	7090000.15258789
1986	8409999.84741211
1987	6130000.11444092
1988	2609999.89509583
1989	7139999.8664856
1990	9840000.15258789
1991	2680000.0667572
1992	9359999.65667725
1993	5480000.01907349
1994	689999.997615814
1995	2140000.10490417
1996	7099999.90463257
1997	2150000.09536743
1998	639999.985694885
1999	4500000
2000	5409999.84741211
2001	-1029999.97138977
2002	1879999.99523163
2003	1210000.03814697
2004	3259999.99046326
2005	6519999.98092651
2006	6199999.80926514
2007	5510000.228881841
2008	6539999.96185303
2009	-2710000.03814697
2010	-5510000.228881841
2011	-1730000.01907349
2012	379999.99523162795
2013	-3089999.91416931
2014	3279999.97138977
2015	7506408.21456909
2016	16161891.937255898
2017	22626783.370971702
2018	15402657.5088501
2019	1331964.73121643
2020	-3639887.33291626
2021	-10378000.2593994
2022	-10249059.677124001