Year	current US$
1973	29999.999329447703
1974	70000.0002980232
1975	9999.99977648258
1978	9999.99977648258
1979	9999.99977648258
1980	9999.99977648258
1981	19999.9995529652
1982	19999.9995529652
1983	29999.999329447703
1984	9999.99977648258
1986	9999.99977648258
1987	9999.99977648258
1991	490000.009536743
1992	59999.9986588955
1994	19999.9995529652
1996	9999.99977648258
1997	9999.99977648258