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| Year | Trade Value | Weight (kg) | Quantity |
| 2005 | $1,000 | 53 | 53 |
| 2006 | $11,393 | 1,862 | 1,862 |
| 2007 | $18,748 | 3,305 | 3,305 |
| 2008 | $24,384 | 2,872 | 2,872 |
| 2009 | $26,856 | 2,802 | 2,802 |
| 2010 | $24,508 | 1,693 | 1,693 |
| 2011 | $41,514 | 2,204 | 2,204 |
Note: Quantity represents Weight in kilograms
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