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| Year | Trade Value | Weight (kg) | Quantity |
| 2005 | $692 | 146 | 146 |
| 2006 | $575 | 1,962 | 1,962 |
| 2007 | $5,611 | 2,055 | 2,055 |
| 2008 | $46,199 | 29,941 | 29,941 |
| 2009 | $97,514 | 48,432 | 48,432 |
| 2010 | $422,116 | 139,655 | 139,655 |
| 2011 | $212,798 | 147,790 | 147,790 |
Note: Quantity represents Weight in kilograms
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