Year	current US$
1970	140000.000596046
1971	200000.00298023198
1972	349999.99403953605
1973	170000.00178813902
1974	90000.0035762787
1975	230000.004172325
1976	250000
1977	1909999.9666214
1978	829999.983310699
1979	4250000
1980	1490000.0095367401
1981	1539999.96185303
1982	5449999.80926514
1983	4079999.92370605
1984	1610000.01430511
1985	2450000.04768372
1986	3309999.94277954
1987	4380000.11444092
1988	5070000.17166138
1989	4599999.90463257
1990	5920000.07629395
1991	4989999.771118159
1992	4940000.05722046
1993	7150000.09536743
1994	8310000.419616699
1995	8500000
1996	11350000.3814697
1997	10850000.3814697
1998	11479999.5422363
1999	6099999.90463257
2000	5739999.771118159
2001	13420000.076293899
2002	7289999.96185303
2003	9899999.61853027
2004	14100000.3814697
2005	12039999.961853001
2006	4199999.80926514
2007	3299999.95231628
2008	2440000.05722046
2009	3059999.94277954
2011	300000.011920929
2012	140000.000596046
2013	150000.005960464
2014	70000.0002980232
2015	9800000.19073486
2016	239999.994635582
2017	39999.9991059303
2018	70000.0002980232
2019	50000.0007450581