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| Year | Trade Value | Weight (kg) | Quantity |
| 2005 | $29,804 | 75,375 | 75,375 |
| 2006 | $9,126 | 30,263 | 30,263 |
| 2007 | $26,435 | 103,802 | 103,802 |
| 2008 | $59,015 | 183,693 | 183,693 |
| 2009 | $202,446 | 513,627 | 513,627 |
| 2010 | $199,225 | 379,388 | 379,388 |
| 2011 | $237,400 | 398,729 | 398,729 |
Note: Quantity represents Weight in kilograms
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