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| Year | Trade Value | Weight (kg) | Quantity |
| 2005 | $6,001 | 345 | 345 |
| 2006 | $8,096 | 7,167 | 7,167 |
| 2007 | $9,162 | 9,284 | 9,284 |
| 2008 | $12,056 | 9,799 | 9,799 |
| 2009 | $13,293 | 12,830 | 12,830 |
| 2010 | $39,384 | 25,133 | 25,133 |
| 2011 | $38,245 | 21,390 | 21,390 |
Note: Quantity represents Weight in kilograms
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