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| Year | Trade Value | Weight (kg) | Quantity |
| 2005 | $49 | 16 | 16 |
| 2006 | $13,427 | 2,756 | 2,756 |
| 2007 | $26,398 | 8,283 | 8,283 |
| 2008 | $83,388 | 48,071 | 48,071 |
| 2009 | $32,694 | 16,147 | 16,147 |
| 2010 | $44,724 | 20,536 | 20,536 |
| 2011 | $48,502 | 19,509 | 19,509 |
Note: Quantity represents Weight in kilograms
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