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| Year | Trade Value | Weight (kg) | Quantity |
| 2005 | $721,795,432 | 163,208,325 | 0 |
| 2006 | $514,794,739 | 193,499,662 | 0 |
| 2007 | $384,249,104 | 60,052,373 | 0 |
| 2008 | $510,845,274 | 49,028,939 | 0 |
| 2009 | $89,984,718 | 23,104,966 | 0 |
| 2010 | $217,174,907 | 21,587,087 | 0 |
| 2011 | $233,127,408 | 58,094,094 | 16 |
Note: Quantity represents No Quantity
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