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| Year | Trade Value | Weight (kg) | Quantity |
| 2005 | $14,462 | 4,969 | 4,969 |
| 2006 | $15,616 | 5,221 | 5,221 |
| 2007 | $14,406 | 7,017 | 7,017 |
| 2008 | $21,592 | 8,633 | 8,633 |
| 2009 | $28,542 | 9,546 | 9,546 |
| 2010 | $35,237 | 13,310 | 13,310 |
| 2011 | $28,693 | 9,802 | 9,802 |
Note: Quantity represents Weight in kilograms
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