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| Year | Trade Value | Weight (kg) | Quantity |
| 2005 | $20,287 | 17,117 | 17,117 |
| 2006 | $17,191 | 13,119 | 13,119 |
| 2007 | $26,405 | 21,101 | 21,101 |
| 2008 | $29,558 | 19,033 | 19,033 |
| 2009 | $31,327 | 22,180 | 22,180 |
| 2010 | $27,184 | 15,745 | 15,745 |
| 2011 | $36,670 | 18,687 | 18,687 |
Note: Quantity represents Weight in kilograms
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