Year	current US$
1980	19999.9995529652
1981	19999.9995529652
1982	29999.999329447703
1983	29999.999329447703
1984	19999.9995529652
1985	9999.99977648258
1986	19999.9995529652
1987	19999.9995529652
1988	9999.99977648258
1990	19999.9995529652
1991	9999.99977648258
1992	9999.99977648258
1993	0
1994	9999.99977648258