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| Year | Trade Value | Weight (kg) | Quantity |
| 2005 | $21,500 | 6,128 | 6,128 |
| 2006 | $26,500 | 2,704 | 2,704 |
| 2007 | $1,200 | 242 | 242 |
| 2008 | $19,300 | 4,106 | 4,106 |
| 2009 | $18,500 | 2,627 | 2,627 |
| 2010 | $71,700 | 11,659 | 11,659 |
| 2011 | $121,500 | 21,816 | 21,816 |
Note: Quantity represents Weight in kilograms
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