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| Year | Trade Value | Weight (kg) | Quantity |
| 2005 | $494 | 156 | 156 |
| 2006 | $3,033 | 349 | 349 |
| 2007 | $30,829 | 17,725 | 17,725 |
| 2008 | $91,489 | 52,338 | 52,338 |
| 2009 | $90,601 | 54,883 | 54,883 |
| 2010 | $75,394 | 52,710 | 52,710 |
| 2011 | $157,544 | 76,215 | 76,215 |
Note: Quantity represents Weight in kilograms
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