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| Year | Trade Value | Weight (kg) | Quantity |
| 2005 | $58,306 | 4,294 | 4,294 |
| 2006 | $53,397 | 4,062 | 4,062 |
| 2007 | $130,962 | 8,717 | 8,717 |
| 2008 | $150,440 | 6,426 | 6,426 |
| 2009 | $227,197 | 12,428 | 12,428 |
| 2010 | $89,012 | 5,383 | 5,383 |
| 2011 | $76,211 | 2,815 | 2,815 |
Note: Quantity represents Weight in kilograms
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