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| Year | Trade Value | Weight (kg) | Quantity |
| 2005 | $32,703 | 33,111 | 33,111 |
| 2006 | $23,000 | 25,985 | 25,985 |
| 2007 | $31,841 | 35,156 | 35,156 |
| 2008 | $22,535 | 17,196 | 17,196 |
| 2009 | $18,039 | 20,660 | 20,660 |
| 2010 | $30,669 | 30,402 | 30,402 |
| 2011 | $21,048 | 13,340 | 13,340 |
Note: Quantity represents Weight in kilograms
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