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| Year | Trade Value | Weight (kg) | Quantity |
| 2005 | $27,625 | 2,344 | 2,344 |
| 2006 | $29,620 | 2,348 | 2,348 |
| 2007 | $57,463 | 13,889 | 13,889 |
| 2008 | $46,550 | 18,526 | 18,526 |
| 2009 | $29,816 | 16,084 | 16,084 |
| 2010 | $16,789 | 3,298 | 3,298 |
| 2011 | $31,643 | 2,703 | 2,703 |
Note: Quantity represents Weight in kilograms
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