Year	current US$
1970	2840000.0035762787
1971	2770000.055432317
1972	5490000.009536743
1973	10189999.923110055
1974	8479999.57203865
1975	14489999.935030984
1976	12519999.839365482
1977	19930000.67211691
1978	23230000.13828279
1979	14669999.547302715
1980	18740000.24795533
1981	5920000.05580485
1982	28399999.69303603
1983	2059999.965131285
1984	99999.99776482579
1985	9889999.575912952
1986	7729999.907314779
1987	17529999.08477072
1988	11020000.4577637
1989	9039999.96185303
1990	13189999.5803833
1991	13959999.579936236
1992	5829999.834299084
1993	9340000.18984079
1994	3569999.9332428
1995	5900000.0059604645
1996	259999.990463257
1997	6530000.20980835
1998	2490000.00953674
1999	3150000.09536743
2000	2019999.9809265102
2001	2940000.05722046
2002	1220000.02861023
2003	2319999.9332428
2004	2980000.01907349
2005	3869999.8855590797
2006	3590000.078082089
2007	1850000.0517815377
2008	110000.00312924391
2009	259999.990463257
2010	170000.00178813902
2011	-70000.0002980232
2012	43141.6109204292
2014	1589.99999985099
2015	1627887.9642486598
2016	8731508.25500488
2017	2262369.9456453286
2021	288590.01398086495
2022	2526107.5496673603