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| Year | Trade Value | Weight (kg) | Quantity |
| 2005 | $146 | 2,279 | 2,279 |
| 2006 | $1,395 | 1,041 | 1,041 |
| 2007 | $601 | 1,301 | 1,301 |
| 2008 | $9,790 | 3,345 | 3,345 |
| 2009 | $11,323 | 17,747 | 17,747 |
| 2010 | $26,772 | 58,347 | 58,347 |
| 2011 | $27,056 | 43,262 | 43,262 |
Note: Quantity represents Weight in kilograms
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