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| Year | Trade Value | Weight (kg) | Quantity |
| 2005 | $277 | 1,078 | 1,078 |
| 2006 | $393 | 1,550 | 1,550 |
| 2007 | $1,952 | 6,314 | 6,314 |
| 2008 | $5,294 | 17,490 | 17,490 |
| 2009 | $2,564 | 10,405 | 10,405 |
| 2010 | $14,940 | 61,970 | 61,970 |
| 2011 | $89,226 | 220,168 | 220,168 |
Note: Quantity represents Weight in kilograms
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