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| Year | Trade Value | Weight (kg) | Quantity |
| 2005 | $1,367 | 4,850 | 4,850 |
| 2006 | $11,917 | 5,900 | 5,900 |
| 2007 | $56 | 16 | 16 |
| 2008 | $1,549 | 256 | 256 |
| 2009 | $41,912 | 11,663 | 11,663 |
| 2010 | $113,287 | 34,234 | 34,234 |
| 2011 | $106,968 | 33,219 | 33,219 |
Note: Quantity represents Weight in kilograms
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