Year	current US$
1967	9999.99977648258
1968	9999.99977648258
1975	29999.999329447703
1977	59999.9986588955
1980	70000.0002980232
1981	29999.999329447703
1982	129999.995231628
1986	70000.0002980232
1987	129999.995231628
1988	119999.997317791
1991	90000.0035762787
1992	170000.00178813902
1997	9999.99977648258
1998	9999.99977648258
2016	129999.995231628