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| Year | Trade Value | Weight (kg) | Quantity |
| 2005 | $2,253 | 489 | 489 |
| 2006 | $10,553 | 1,349 | 1,349 |
| 2007 | $24,118 | 4,598 | 4,598 |
| 2008 | $64,206 | 12,749 | 12,749 |
| 2009 | $41,619 | 10,361 | 10,361 |
| 2010 | $36,927 | 3,822 | 3,822 |
| 2011 | $23,930 | 3,624 | 3,624 |
Note: Quantity represents Weight in kilograms
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