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| Year | Trade Value | Weight (kg) | Quantity |
| 2005 | $1,185 | 1,542 | 1,542 |
| 2006 | $35,432 | 76,931 | 76,931 |
| 2007 | $21,252 | 37,195 | 37,195 |
| 2008 | $230,382 | 401,116 | 401,116 |
| 2009 | $31,674 | 14,379 | 14,379 |
| 2010 | $76,511 | 34,746 | 34,746 |
| 2011 | $11,578 | 5,216 | 5,216 |
Note: Quantity represents Weight in kilograms
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