Year	current US$
1976	19999.9995529652
1977	29999.999329447703
1978	180000.00715255702
1979	79999.9982118607
1981	239999.994635582
1982	50000.0007450581
1983	79999.9982118607
1984	59999.9986588955
1985	29999.999329447703
1986	9999.99977648258
1987	9999.99977648258
1989	9999.99977648258
1990	9999.99977648258
1992	9999.99977648258
2004	19999.9995529652