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| Year | Trade Value | Weight (kg) | Quantity |
| 2005 | $6,747 | 2,788 | 2,788 |
| 2006 | $4,204 | 646 | 646 |
| 2007 | $18,655 | 3,614 | 3,614 |
| 2008 | $9,095 | 1,454 | 1,454 |
| 2009 | $41,430 | 8,597 | 8,597 |
| 2010 | $50,358 | 18,091 | 18,091 |
| 2011 | $53,773 | 9,018 | 9,018 |
Note: Quantity represents Weight in kilograms
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