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| Year | Trade Value | Weight (kg) | Quantity |
| 2005 | $6,100 | 470 | 470 |
| 2006 | $24,232 | 4,151 | 4,151 |
| 2007 | $48,948 | 6,302 | 6,302 |
| 2008 | $120,016 | 18,244 | 18,244 |
| 2009 | $49,109 | 12,285 | 12,285 |
| 2010 | $42,398 | 4,757 | 4,757 |
| 2011 | $23,620 | 3,284 | 3,284 |
Note: Quantity represents Weight in kilograms
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