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| Year | Trade Value | Weight (kg) | Quantity |
| 2005 | $101,995 | 65,736 | 65,736 |
| 2006 | $83,538 | 66,505 | 66,505 |
| 2007 | $123,719 | 68,463 | 68,463 |
| 2008 | $42,782 | 1,458,524 | 1,458,524 |
| 2009 | $33,977 | 8,600 | 8,600 |
| 2010 | $88,568 | 26,323 | 26,323 |
| 2011 | $27,809 | 7,560 | 7,560 |
Note: Quantity represents Weight in kilograms
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