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| Year | Trade Value | Weight (kg) | Quantity |
| 2005 | $468 | 252 | 252 |
| 2006 | $7,406 | 1,476 | 1,476 |
| 2007 | $12,500 | 131,300 | 131,300 |
| 2008 | $30,544 | 61,085 | 61,085 |
| 2009 | $193,599 | 599,366 | 599,366 |
| 2010 | $24,163 | 58,043 | 58,043 |
| 2011 | $1,729 | 417 | 417 |
Note: Quantity represents Weight in kilograms
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