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| Year | Trade Value | Weight (kg) | Quantity |
| 2005 | $18,721 | 7,547 | 7,547 |
| 2006 | $25,034 | 23,139 | 23,139 |
| 2007 | $24,915 | 19,699 | 19,699 |
| 2008 | $17,681 | 25,871 | 25,871 |
| 2009 | $6,694 | 4,371 | 4,371 |
| 2010 | $6,688 | 3,622 | 3,622 |
| 2011 | $99 | 2 | 2 |
Note: Quantity represents Weight in kilograms
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