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| Year | Trade Value | Weight (kg) | Quantity |
| 2005 | $11,800 | 12,364 | 12,364 |
| 2006 | $18,400 | 19,810 | 19,810 |
| 2007 | $28,000 | 23,387 | 23,387 |
| 2008 | $102,600 | 107,792 | 107,792 |
| 2009 | $36,900 | 34,571 | 34,571 |
| 2010 | $510,900 | 593,310 | 593,310 |
| 2011 | $374,200 | 435,650 | 435,650 |
Note: Quantity represents Weight in kilograms
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