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| Year | Trade Value | Weight (kg) | Quantity |
| 2005 | $1,931 | 169,000 | 169,000 |
| 2006 | $1,442 | 113,915 | 113,915 |
| 2007 | $1,064 | 89,025 | 89,025 |
| 2008 | $20,046 | 6,355,701 | 6,355,701 |
| 2009 | $33,535 | 11,220,370 | 11,220,370 |
| 2010 | $239,073 | 26,817,030 | 26,817,030 |
Note: Quantity represents Weight in kilograms
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