Year	current US$
1981	39999.9991059303
1982	29999.999329447703
1983	19999.9995529652
1984	50000.0007450581
1985	29999.999329447703
1986	39999.9991059303
1987	39999.9991059303
1988	19999.9995529652
1989	29999.999329447703
1991	200000.00298023198