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| Year | Trade Value | Weight (kg) | Quantity |
| 2005 | $685 | 253 | 253 |
| 2006 | $2,999 | 628 | 628 |
| 2007 | $35,283 | 16,200 | 16,200 |
| 2008 | $176,976 | 75,697 | 75,697 |
| 2009 | $332,368 | 218,926 | 218,926 |
| 2010 | $209,784 | 140,826 | 140,826 |
| 2011 | $148,605 | 90,129 | 90,129 |
Note: Quantity represents Weight in kilograms
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