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| Year | Trade Value | Weight (kg) | Quantity |
| 2005 | $75 | 15 | 15 |
| 2006 | $3,618 | 3,030 | 3,030 |
| 2007 | $2,663 | 2,105 | 2,105 |
| 2008 | $27,474 | 22,440 | 22,440 |
| 2009 | $11,221 | 9,525 | 9,525 |
| 2010 | $11,880 | 9,494 | 9,494 |
| 2011 | $24,642 | 16,071 | 16,071 |
Note: Quantity represents Weight in kilograms
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