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| Year | Trade Value | Weight (kg) | Quantity |
| 2005 | $14,463 | 15,798 | 15,798 |
| 2006 | $11,782 | 9,317 | 9,317 |
| 2007 | $12,412 | 8,312 | 8,312 |
| 2008 | $13,740 | 7,458 | 7,458 |
| 2009 | $14,339 | 9,876 | 9,876 |
| 2010 | $15,803 | 13,045 | 13,045 |
| 2011 | $21,548 | 15,443 | 15,443 |
Note: Quantity represents Weight in kilograms
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