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| Year | Trade Value | Weight (kg) | Quantity |
| 2005 | $1,027 | 869 | 869 |
| 2006 | $377 | 355 | 355 |
| 2007 | $18,004 | 31,006 | 31,006 |
| 2008 | $21,687 | 18,476 | 18,476 |
| 2009 | $10,365 | 4,545 | 4,545 |
| 2010 | $28,585 | 19,348 | 19,348 |
| 2011 | $15,557 | 11,728 | 11,728 |
Note: Quantity represents Weight in kilograms
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