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| Year | Trade Value | Weight (kg) | Quantity |
| 2005 | $15,500 | 2,957 | 2,957 |
| 2006 | $29,400 | 5,491 | 5,491 |
| 2007 | $20,600 | 3,775 | 3,775 |
| 2008 | $13,200 | 2,704 | 2,704 |
| 2009 | $21,500 | 3,573 | 3,573 |
| 2010 | $16,700 | 2,956 | 2,956 |
| 2011 | $11,200 | 1,757 | 1,757 |
Note: Quantity represents Weight in kilograms
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