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| Year | Trade Value | Weight (kg) | Quantity |
| 2005 | $138,228,844 | 778,037,213 | 778,037,213 |
| 2006 | $184 | 150 | 150 |
| 2007 | $123 | 519 | 519 |
| 2008 | $490 | 11 | 11 |
| 2009 | $9,383,979 | 17,834,230 | 17,834,230 |
| 2010 | $67,254,161 | 173,680,128 | 173,680,128 |
Note: Quantity represents Weight in kilograms
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