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| Year | Trade Value | Weight (kg) | Quantity |
| 2005 | $23,789 | 348 | 348 |
| 2006 | $40,752 | 720 | 720 |
| 2007 | $57,222 | 2,017 | 2,017 |
| 2008 | $68,730 | 1,807 | 1,807 |
| 2009 | $175,113 | 5,252 | 5,252 |
| 2010 | $205,158 | 6,754 | 6,754 |
| 2011 | $463,802 | 7,387 | 7,387 |
Note: Quantity represents Weight in kilograms
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