Year	US Dollars
1985	37590000.15259
1986	92989997.86377
1987	40040000.91553
1988	35580001.83105
1989	47470001.2207
1990	49400001.52588
1991	41029998.7793
1992	45220001.2207
1993	38860000.61035
1994	27350000.38147
1995	33419998.16895
1996	26409999.84741
1997	38049999.23706
1998	17020000.45776
1999	-11460000.03815