Year	current US$
1981	19999.9995529652
1982	200000.00298023198
1983	70000.0002980232
1984	140000.000596046
1985	219999.998807907
1986	239999.994635582
1987	189999.99761581398
1988	250000
1989	250000
1990	19999.9995529652
1991	129999.995231628
1992	39999.9991059303
1993	90000.0035762787
1998	9999.99977648258