Year	current US$
1974	19999.9995529652
1976	19999.9995529652
1977	29999.999329447703
1978	39999.9991059303
1979	19999.9995529652
1980	-9999.99977648258
1981	170000.00178813902
1982	250000
1983	370000.00476837205
1984	639999.985694885
1985	1049999.95231628
1986	2180000.0667572
1987	2809999.94277954
1988	3910000.08583069
1989	4030000.2098083496
1990	3109999.89509583
1991	2960000.03814697
1992	4409999.84741211
1993	4519999.98092651
1994	4760000.228881841
1995	4050000.1907348596
1996	2960000.03814697
1997	209999.993443489
1998	180000.00715255702
1999	100000.00149011599
2000	189999.99761581398
2001	129999.995231628
2002	230000.004172325
2003	280000.001192093
2004	340000.00357627904