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| Year | Trade Value | Weight (kg) | Quantity |
| 2005 | $1,938 | 741 | 741 |
| 2006 | $17,565 | 5,692 | 5,692 |
| 2007 | $1,378 | 739 | 739 |
| 2008 | $3,279 | 3,126 | 3,126 |
| 2009 | $36,858 | 16,322 | 16,322 |
| 2010 | $47,466 | 16,064 | 16,064 |
| 2011 | $63,544 | 22,146 | 22,146 |
Note: Quantity represents Weight in kilograms
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