Year	current US$
1979	500000
1980	2460000.03814697
1981	1200000.04768372
1982	1000000
1983	660000.026226044
1984	550000.011920929
1985	379999.99523162795
1986	360000.01430511504
1988	319999.99284744303
1989	400000.00596046395
1990	270000.010728836
1991	360000.01430511504
1992	600000.023841858
1993	439999.997615814
1994	579999.983310699
1995	300000.011920929
1996	230000.004172325
1997	70000.0002980232
1998	70000.0002980232
1999	59999.9986588955
2000	39999.9991059303
2001	39999.9991059303
2002	39999.9991059303
2003	29999.999329447703