Year	current US$
1970	29999.999329447703
1971	29999.999329447703
1973	39999.9991059303
1974	19999.9995529652
1975	50000.0007450581
1976	9999.99977648258
1977	29999.999329447703
1978	19999.9995529652
1979	19999.9995529652
1982	109999.999403954
1983	680000.007152557
1985	109999.999403954
1986	19999.9995529652
1987	29999.999329447703
1988	29999.999329447703
1990	50000.0007450581
1998	540000.021457672