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| Year | Trade Value | Weight (kg) | Quantity |
| 2005 | $5,796 | 12,100 | 12,100 |
| 2006 | $5,774 | 9,700 | 9,700 |
| 2007 | $5,382 | 8,900 | 8,900 |
| 2008 | $25,818 | 188,500 | 188,500 |
| 2009 | $35,731 | 31,126 | 31,126 |
| 2010 | $25,497 | 24,728 | 24,728 |
| 2011 | $9,052 | 9,351 | 9,351 |
Note: Quantity represents Weight in kilograms
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