Year	current US$
1980	349999.99403953605
1981	9999.99977648258
1983	389999.98569488496
1984	90000.0035762787
1985	79999.9982118607
1987	19999.9995529652
1990	579999.983310699
1991	620000.004768372
1992	39999.9991059303
1993	469999.998807907
1994	-59999.9986588955
1995	1080000.04291534
1996	90000.0035762787
1997	790000.021457672
1998	239999.994635582
1999	50000.0007450581
2000	3759999.99046326
2001	2549999.95231628
2002	-449999.988079071
2003	-639999.985694885
2004	-680000.007152557