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| Year | Trade Value | Weight (kg) | Quantity |
| 2005 | $808 | 133 | 133 |
| 2006 | $2,129 | 27,874 | 27,874 |
| 2007 | $4,833 | 85,179 | 85,179 |
| 2008 | $6,855 | 141,766 | 141,766 |
| 2009 | $10,595 | 192,472 | 192,472 |
| 2010 | $17,003 | 422,031 | 422,031 |
| 2011 | $32,049 | 396,799 | 396,799 |
Note: Quantity represents Weight in kilograms
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