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| Year | Trade Value | Weight (kg) | Quantity |
| 2005 | $23,917 | 20,315 | 20,315 |
| 2006 | $14,037 | 26,076 | 26,076 |
| 2007 | $453 | 292 | 292 |
| 2008 | $1,764 | 3,635 | 3,635 |
| 2009 | $1,797 | 1,220 | 1,220 |
| 2010 | $2,395 | 1,609 | 1,609 |
| 2011 | $1,676 | 3,640 | 3,640 |
Note: Quantity represents Weight in kilograms
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