Year	current US$
1976	419999.986886978
1978	270000.010728836
1979	109999.999403954
1986	39999.9991059303
1987	79999.9982118607
1988	349999.99403953605
1989	79999.9982118607
1990	300000.011920929
1991	330000.013113022
1992	1259999.9904632599
1993	2029999.97138977
1994	3799999.95231628
1995	6730000.01907349
1996	4139999.8664856004
1997	5179999.82833862
1998	3819999.9332428
1999	5119999.88555908
2000	3160000.08583069
2001	2980000.01907349
2002	1440000.0572204601
2003	1799999.95231628
2004	1779999.97138977
2005	6650000.09536743
2006	12760000.2288818
2007	2960000.03814697
2008	2839999.91416931
2009	2230000.01907349
2010	1509999.9904632599
2011	13630000.1144409
2012	1519999.98092651
2013	-10560000.4196167
2014	-201029998.779297
2015	3130000.1144409203
2016	8470000.26702881
2017	870000.004768372
2018	18620000.8392334
2019	10340000.1525879
2020	-1559999.9427795399
2021	12949999.8092651
2022	1019999.98092651