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| Year | Trade Value | Weight (kg) | Quantity |
| 2005 | $698 | 32 | 32 |
| 2006 | $7,174 | 451 | 451 |
| 2007 | $32,594 | 2,032 | 2,032 |
| 2008 | $51,743 | 3,937 | 3,937 |
| 2009 | $177,743 | 12,292 | 12,292 |
| 2010 | $76,319 | 75,417 | 75,417 |
| 2011 | $114,991 | 105,410 | 105,410 |
Note: Quantity represents Weight in kilograms
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