Year	current US$
1967	15729999.899864241
1974	1639999.98569489
1975	2369999.8855590797
1976	2529999.97138977
1977	1980000.01907349
1978	1069999.9425560224
1979	1659999.9666214
1980	3219999.8889118484
1981	2569999.979808923
1982	2699999.921023841
1983	2199999.976903203
1984	1159999.9815225606
1985	1599999.9791383706
1986	1290000.0289082532
1987	1050000.0100582836
1988	1020000.0274926426
1989	3699999.9303370737
1990	3619999.991729852
1991	3960000.0027567153
1992	2149999.9407678833
1993	2660000.093281267
1994	10779999.943450093
1995	1370000.03457069
1996	1149999.9556690413
1997	2319999.992847442
1998	1700000.0514090073
1999	2810000.019147996
2000	4989999.936893583
2001	2739999.951794739
2002	-419999.9887496233
2003	-529999.986290931
2004	-660000.0075995919