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| Year | Trade Value | Weight (kg) | Quantity |
| 2005 | $2,172 | 403 | 403 |
| 2006 | $9,137 | 135,097 | 135,097 |
| 2007 | $9,085 | 114,381 | 114,381 |
| 2008 | $7,396 | 76,794 | 76,794 |
| 2009 | $10,207 | 101,766 | 101,766 |
| 2010 | $76,068 | 70,644 | 70,644 |
| 2011 | $32,552 | 24,172 | 24,172 |
Note: Quantity represents Weight in kilograms
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