Year	current US$
1967	9999.99977648258
1968	9999.99977648258
1969	9999.99977648258
1970	9999.99977648258
1984	9999.99977648258
1990	79999.9982118607
1991	2309999.94277954
1992	19999.9995529652
1993	9999.99977648258