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| Year | Trade Value | Weight (kg) | Quantity |
| 2005 | $4,500 | 2,196 | 2,196 |
| 2006 | $10,300 | 2,481 | 2,481 |
| 2007 | $15,700 | 3,609 | 3,609 |
| 2008 | $23,400 | 4,046 | 4,046 |
| 2009 | $161,500 | 5,310 | 5,310 |
| 2010 | $275,400 | 9,640 | 9,640 |
| 2011 | $355,800 | 21,698 | 21,698 |
Note: Quantity represents Weight in kilograms
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