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| Year | Trade Value | Weight (kg) | Quantity |
| 2005 | $9,456 | 1,687 | 1,687 |
| 2006 | $9,126 | 1,087 | 1,087 |
| 2007 | $10,558 | 1,759 | 1,759 |
| 2008 | $13,241 | 1,010 | 1,010 |
| 2009 | $15,279 | 5,532 | 5,532 |
| 2010 | $23,619 | 8,206 | 8,206 |
| 2011 | $4,549 | 751 | 751 |
Note: Quantity represents Weight in kilograms
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