Year	current US$
1972	50000.0007450581
1973	50000.0007450581
1975	19999.9995529652
1976	90000.0035762787
1977	39999.9991059303
1978	1850000.02384186
1979	560000.002384186
1980	4690000.05722046
1981	4510000.228881841
1982	949999.988079071
1983	2809999.94277954
1984	2660000.08583069
1985	2500000
1986	3869999.8855590797
1987	7190000.05722046
1988	5829999.92370605
1989	3890000.10490417
1990	11949999.8092651
1991	-1070000.05245209
1992	4489999.771118159
1993	469999.998807907
1994	300000.011920929
1995	209999.993443489
1996	180000.00715255702
1997	1009999.99046326
1998	860000.014305115
1999	250000
2000	4610000.1335144
2001	3509999.99046326
2002	27579999.9237061
2003	560000.002384186
2004	750000
2005	600000.023841858
2006	400000.00596046395
2007	79999.9982118607
2008	209999.993443489
2017	39999.9991059303
2019	9999.99977648258