Year	current US$
1970	990000.009536743
1971	90000.0035762787
1972	319999.99284744303
1973	259999.990463257
1974	540000.021457672
1975	639999.985694885
1976	1120000.00476837
1977	2190000.05722046
1978	2319999.9332428
1979	1399999.97615814
1980	1279999.97138977
1981	910000.026226044
1982	579999.983310699
1983	529999.971389771
1984	970000.028610229
1985	509999.99046325695
1986	560000.002384186
1987	829999.983310699
1995	319999.99284744303
1996	150000.005960464
1997	230000.004172325
1998	90000.0035762787
2000	29999.999329447703
2001	119999.997317791
2002	90000.0035762787
2003	100000.00149011599
2004	100000.00149011599