Year	current US$
1973	1039999.96185303
1974	4159999.8474121103
1975	3809999.94277954
1976	3950000.04768372
1977	4849999.90463257
1978	219999.998807907
1979	14699999.8092651
1980	8840000.15258789
1981	1610000.01430511
1982	5389999.8664856
1983	699999.988079071
1984	379999.99523162795
1985	9979999.54223633
1986	879999.995231628
1987	5230000.01907349
1988	3539999.96185303
1989	119999.997317791
1990	9880000.11444092
1991	4010000.2288818406
1992	5599999.90463257
1993	3059999.94277954
1994	6409999.84741211
1995	2450000.04768372
1996	1870000.00476837
1997	-1899999.97615814
1998	29999.999329447703
1999	-910000.026226044
2000	-910000.026226044
2001	1700000.04768372
2002	-2069999.9332428002
2003	1259999.9904632599
2004	-100000.00149011599
2005	-319999.99284744303
2006	-639999.985694885
2007	-430000.00715255697
2008	3609999.89509583
2009	-2650000.09536743
2010	-9999.99977648258
2011	490000.009536743
2012	819999.992847443
2013	1000000
2014	769999.980926514
2015	620000.004768372
2016	1389999.98569489
2017	1009999.99046326
2018	1220000.02861023
2019	1029999.97138977
2020	1460000.03814697
2021	1210000.03814697
2022	939999.997615814