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| Year | Trade Value | Weight (kg) | Quantity |
| 2005 | $4,118 | 27,000 | 27,000 |
| 2007 | $11,817 | 15,000 | 15,000 |
| 2008 | $17,256 | 27,170 | 27,170 |
| 2009 | $44,476 | 90,000 | 90,000 |
| 2010 | $202,145 | 369,404 | 369,404 |
| 2011 | $522,302 | 980,100 | 980,100 |
Note: Quantity represents Weight in kilograms
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