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| Year | Trade Value | Weight (kg) | Quantity |
| 2005 | $24,342 | 9,452 | 9,452 |
| 2006 | $79,252 | 46,829 | 46,829 |
| 2007 | $106,627 | 101,109 | 101,109 |
| 2008 | $79,506 | 113,541 | 113,541 |
| 2009 | $201,716 | 272,593 | 272,593 |
| 2010 | $79,256 | 72,610 | 72,610 |
Note: Quantity represents Weight in kilograms
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