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| Year | Trade Value | Weight (kg) | Quantity |
| 2005 | $16,201 | 11,717 | 11,717 |
| 2006 | $13,983 | 9,767 | 9,767 |
| 2007 | $13,441 | 7,329 | 7,329 |
| 2008 | $9,250 | 3,427 | 3,427 |
| 2009 | $19,996 | 6,591 | 6,591 |
| 2010 | $15,998 | 12,932 | 12,932 |
| 2011 | $7,041 | 2,321 | 2,321 |
Note: Quantity represents Weight in kilograms
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