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| Year | Trade Value | Weight (kg) | Quantity |
| 2005 | $10,752 | 2,806 | 2,806 |
| 2006 | $23 | 32 | 32 |
| 2007 | $89,770 | 15,500 | 15,500 |
| 2008 | $141,155 | 24,280 | 24,280 |
| 2009 | $161,904 | 27,200 | 27,200 |
| 2010 | $154,173 | 25,019 | 25,019 |
| 2011 | $145,356 | 21,299 | 21,299 |
Note: Quantity represents Weight in kilograms
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