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| Year | Trade Value | Weight (kg) | Quantity |
| 2005 | $4,720 | 14,247 | 14,247 |
| 2006 | $3,129 | 2,668 | 2,668 |
| 2007 | $767 | 4,392 | 4,392 |
| 2008 | $76,186 | 202,767 | 202,767 |
| 2009 | $4,592 | 17,506 | 17,506 |
| 2010 | $904 | 1,873 | 1,873 |
| 2011 | $19,769 | 17,550 | 17,550 |
Note: Quantity represents Weight in kilograms
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