Year	current US$
1971	19999.9995529652
1972	89999.9998509884
1973	60000.000521540685
1974	700000.002980232
1975	329999.9907612803
1976	510000.005364418
1977	679999.984800815
1978	280000.001192092
1979	490000.00208616303
1980	290000.0102818012
1981	200000.00484287727
1982	49999.9988824129
1983	39999.999105930285
1984	9999.99977648262
1985	29999.999329447783
1986	-9999.99977648262
1987	-19999.99955296512
1988	-29999.999329447703
1989	-39999.9991059303
1990	22170000.22716818
1991	16099999.673664562
1992	35679999.72403045
1993	26719999.670982365
1994	1480000.0376999353
1995	23910000.205039978
1996	9190000.135451555
1997	5059999.909251938
1998	28650000.171735886
1999	5150000.013411051
2000	7939999.7517466545
2001	34120000.42200088
2002	22860000.11302531
2003	26239999.935030922
2004	18189999.938011173
2005	340000.00357627904
2006	19999.9995529652
2007	140000.000596046
2008	119999.997317791
2009	200000.00298023198
2010	219999.998807907