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| Year | Trade Value | Weight (kg) | Quantity |
| 2005 | $37 | 71 | 71 |
| 2006 | $14,596 | 83,000 | 83,000 |
| 2007 | $5,167 | 10,392 | 10,392 |
| 2008 | $12,391 | 20,800 | 20,800 |
| 2009 | $18,561 | 49,694 | 49,694 |
| 2010 | $23,630 | 70,530 | 70,530 |
| 2011 | $19,837 | 35,126 | 35,126 |
Note: Quantity represents Weight in kilograms
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