Year	current US$
1977	39999.9991059303
1980	159999.99642372102
1981	70000.0002980232
1982	19999.9995529652
1983	50000.0007450581
1984	79999.9982118607
1985	59999.9986588955
1986	79999.9982118607
1987	79999.9982118607
1988	59999.9986588955
1989	39999.9991059303
1990	9999.99977648258
1991	50000.0007450581
1993	9999.99977648258
1994	430000.00715255697
1995	70000.0002980232
1996	79999.9982118607
1998	-9999.99977648258