Year	current US$
1979	59999.9986588955
1981	79999.9982118607
1983	19999.9995529652
1993	29999.999329447703
1994	9999.99977648258
1995	9999.99977648258
1996	19999.9995529652
1997	2920000.07629395
2000	379999.99523162795
2002	1139999.98569489