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| Year | Trade Value | Weight (kg) | Quantity |
| 2005 | $963 | 9,922 | 9,922 |
| 2006 | $11,403 | 11,164 | 11,164 |
| 2007 | $26,426 | 9,977 | 9,977 |
| 2008 | $29,675 | 26,320 | 26,320 |
| 2009 | $28,940 | 17,063 | 17,063 |
| 2010 | $109,008 | 19,812 | 19,812 |
| 2011 | $62,451 | 68,542 | 68,542 |
Note: Quantity represents Weight in kilograms
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