Year	current US$
1980	449999.988079071
1981	419999.986886978
1982	90000.0035762787
1983	300000.011920929
1984	19999.9995529652
1985	509999.99046325695
1986	129999.995231628
1987	1100000.02384186
1988	189999.99761581398
1989	2049999.9523162802
1990	3230000.01907349
1991	3119999.8855590797
1992	1990000.0095367401
1993	839999.973773956
1994	2910000.08583069
1995	1049999.95231628
1996	2660000.08583069
1997	150000.005960464
1998	-239999.994635582
1999	-899999.976158142
2000	29999.999329447703
2001	-129999.995231628
2002	19999.9995529652
2003	-430000.00715255697
2004	-189999.99761581398
2005	730000.019073486
2006	750000
2007	-1389999.98569489
2008	-1440000.0572204601
2009	-1769999.98092651
2010	2210000.03814697
2011	2390000.10490417
2012	14850000.3814697
2013	7690000.05722046
2014	8840000.15258789
2015	-230000.004172325
2016	-2400000.09536743
2017	-2839999.91416931
2018	-3400000.09536743
2019	-3059999.94277954
2020	-1600000.02384186
2021	-519999.980926514
2022	-1940000.0572204601