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| Year | Trade Value | Weight (kg) | Quantity |
| 2005 | $7,492 | 3,194 | 3,194 |
| 2006 | $12,830 | 3,051 | 3,051 |
| 2007 | $64,505 | 80,072 | 80,072 |
| 2008 | $26,610 | 14,119 | 14,119 |
| 2009 | $21,597 | 8,207 | 8,207 |
| 2010 | $1,358 | 56 | 56 |
| 2011 | $2,449 | 1,048 | 1,048 |
Note: Quantity represents Weight in kilograms
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