Year	current US$
1985	12039999.961853001
1986	40430000.3051758
1987	20829999.9237061
1988	19290000.228211246
1989	24220000.533387046
1990	29920000.0762939
1991	24959999.471902866
1992	30230000.37670133
1993	24729999.30381776
1994	18290000.20027163
1995	25839999.6757507
1996	19489999.949932143
1997	24969999.0935624
1998	11100000.301376004
1999	-7129999.903962018
2000	11409999.845549455
2001	-1589999.9886751205
2002	10389999.587088823
2003	76220001.2207031
2004	-11320000.231265986