Year	current US$
1969	70000.0002980232
1970	19999.9995529652
1971	29999.999329447703
1976	70000.0002980232
1977	159999.99642372102
1978	509999.99046325695
1979	170000.00178813902
1980	280000.001192093
1981	140000.000596046
1982	189999.99761581398
1985	19999.9995529652
1990	1039999.96185303
1991	70000.0002980232
1992	1379999.99523163