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| Year | Trade Value | Weight (kg) | Quantity |
| 2005 | $626 | 504 | 504 |
| 2006 | $1,696 | 367 | 367 |
| 2007 | $5,518 | 1,886 | 1,886 |
| 2008 | $9,520 | 1,598 | 1,598 |
| 2009 | $29,491 | 13,622 | 13,622 |
| 2010 | $31,657 | 13,212 | 13,212 |
| 2011 | $31,787 | 12,099 | 12,099 |
Note: Quantity represents Weight in kilograms
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