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| Year | Trade Value | Weight (kg) | Quantity |
| 2005 | $28,209 | 6,614 | 6,614 |
| 2006 | $15,165 | 7,619 | 7,619 |
| 2007 | $1,145 | 527 | 527 |
| 2008 | $4,482 | 1,156 | 1,156 |
| 2009 | $17,898 | 1,976 | 1,976 |
| 2010 | $23,100 | 2,879 | 2,879 |
| 2011 | $19,183 | 2,387 | 2,387 |
Note: Quantity represents Weight in kilograms
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