Year	current US$
1974	2160000.08583069
1975	3349999.90463257
1976	1830000.04291534
1977	2529999.97138977
1978	4989999.771118159
1979	6079999.92370605
1980	5429999.82833862
1981	3069999.9332428
1982	3099999.90463257
1983	2480000.01907349
1984	1490000.0095367401
1985	1970000.02861023
1986	3299999.95231628
1987	1330000.04291534
1988	3430000.0667572
1989	3990000.00953674
1990	2109999.89509583
1991	2309999.94277954
1992	4670000.07629395
1993	3869999.8855590797
1994	689999.997615814
1995	-479999.989271164
1996	15159999.8474121
1997	8460000.03814697
1998	3470000.02861023
1999	2849999.90463257
2000	1590000.0333786
2001	889999.985694885
2002	1970000.02861023
2003	1029999.97138977
2004	-3630000.1144409203
2005	889999.985694885
2006	180000.00715255702
2008	239999.994635582
2010	300000.011920929
2011	29999.999329447703
2012	50000.0007450581
2013	50000.0007450581
2014	0
2015	750000
2016	59999.9986588955
2017	100000.00149011599
2018	529999.971389771
2019	1350000.02384186
2020	1259999.9904632599
2021	980000.019073486
2022	959999.978542328