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	799999.9839812513
1991	2199999.980628488
1992	7479999.974370003
1993	5639999.985694891
1994	19999.9995529652
1995	5220000.028610227
1996	200000.00670552222
1997	210000.0046193595
1998	1329999.9926239257
1999	219999.998807907
2000	1399999.968707561
2001	10189999.878406523
2002	3109999.993816022
2003	6209999.963641163
2004	5050000.071525572