Year	current US$
1971	50000.0007450581
1972	140000.000596046
1973	239999.994635582
1974	439999.997615814
1975	660000.026226044
1976	270000.010728836
1977	600000.023841858
1978	-9999.99977648258
1979	59999.9986588955
1980	189999.99761581398
1981	330000.013113022
1982	310000.002384186
1983	540000.021457672
1984	779999.971389771
1985	1190000.0572204601
1986	889999.985694885
1987	1070000.05245209
1988	730000.019073486
1989	449999.988079071
1990	9999.99977648258
1991	9999.99977648258
1992	90000.0035762787
1993	1100000.02384186
1994	-430000.00715255697
1995	-150000.005960464
1996	129999.995231628
1997	-170000.00178813902
1998	-29999.999329447703
1999	39999.9991059303
2000	-779999.971389771
2003	620000.004768372