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| Year | Trade Value | Weight (kg) | Quantity |
| 2005 | $23,510,830 | 7,400,229 | 0 |
| 2006 | $31,794,399 | 10,007,551 | 0 |
| 2007 | $23,501,707 | 0 | 175,809,436 |
| 2008 | $82,563,883 | 6,102,536 | 402,212,694 |
| 2009 | $52,949,390 | 0 | 0 |
| 2010 | $56,676,621 | 0 | 339,313,173 |
Note: Quantity represents No Quantity
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