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| Year | Trade Value | Weight (kg) | Quantity |
| 2005 | $17,407 | 286 | 286 |
| 2006 | $20,400 | 19,190 | 19,190 |
| 2007 | $143,225 | 29,825 | 29,825 |
| 2008 | $10,729 | 9,500 | 9,500 |
| 2009 | $54,971 | 110,073 | 110,073 |
| 2010 | $23,095 | 16,162 | 16,162 |
| 2011 | $20,940 | 679 | 679 |
Note: Quantity represents Weight in kilograms
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