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| Year | Trade Value | Weight (kg) | Quantity |
| 2005 | $5,944 | 961 | 961 |
| 2006 | $8,803 | 3,138 | 3,138 |
| 2007 | $7,685 | 4,515 | 4,515 |
| 2008 | $14,554 | 19,236 | 19,236 |
| 2009 | $2,264 | 1,567 | 1,567 |
| 2010 | $33,925 | 87,682 | 87,682 |
| 2011 | $8,872 | 6,635 | 6,635 |
Note: Quantity represents Weight in kilograms
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