Year	current US$
1970	29999.999329447703
1971	50000.0007450581
1972	39999.9991059303
1973	150000.005960464
1974	230000.004172325
1975	439999.997615814
1976	170000.00178813902
1977	219999.998807907
1978	140000.000596046
1979	340000.00357627904
1980	439999.997615814
1981	109999.999403954
1982	50000.0007450581
1983	119999.997317791
1984	100000.00149011599
1985	70000.0002980232
1986	119999.997317791
1987	230000.004172325
1988	180000.00715255702
1989	259999.990463257
1990	360000.01430511504
1991	379999.99523162795
1992	600000.023841858
1993	649999.976158142
1994	670000.016689301
1995	689999.997615814
1996	589999.973773956
1997	930000.007152557
1998	970000.028610229
1999	660000.026226044
2000	620000.004768372
2001	560000.002384186
2002	460000.00834465
2003	469999.998807907