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| Year | Trade Value | Weight (kg) | Quantity |
| 2005 | $1,246 | 370 | 370 |
| 2006 | $17,168 | 4,948 | 4,948 |
| 2007 | $48,947 | 14,019 | 14,019 |
| 2008 | $67,940 | 18,424 | 18,424 |
| 2009 | $38,628 | 10,073 | 10,073 |
| 2010 | $75,325 | 22,082 | 22,082 |
| 2011 | $52,183 | 11,496 | 11,496 |
Note: Quantity represents Weight in kilograms
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