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| Year | Trade Value | Weight (kg) | Quantity |
| 2005 | $3,604 | 3,660 | 3,660 |
| 2006 | $542 | 98 | 98 |
| 2007 | $8,193 | 3,736 | 3,736 |
| 2008 | $21,443 | 8,112 | 8,112 |
| 2009 | $26,774 | 10,473 | 10,473 |
| 2010 | $31,406 | 12,596 | 12,596 |
| 2011 | $26,572 | 9,722 | 9,722 |
Note: Quantity represents Weight in kilograms
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