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| Year | Trade Value | Weight (kg) | Quantity |
| 2005 | $7,581 | 6,440 | 6,440 |
| 2006 | $9,001 | 13,850 | 13,850 |
| 2007 | $7,014 | 9,575 | 9,575 |
| 2008 | $26,773 | 33,525 | 33,525 |
| 2009 | $32,348 | 45,800 | 45,800 |
| 2010 | $13,051 | 19,250 | 19,250 |
| 2011 | $2,943 | 2,580 | 2,580 |
Note: Quantity represents Weight in kilograms
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