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| Year | Trade Value | Weight (kg) | Quantity |
| 2005 | $431 | 120 | 120 |
| 2006 | $7,303 | 7,221 | 7,221 |
| 2007 | $41,904 | 37,705 | 37,705 |
| 2008 | $66,424 | 47,744 | 47,744 |
| 2009 | $36,660 | 29,019 | 29,019 |
| 2010 | $73,095 | 63,126 | 63,126 |
| 2011 | $82,736 | 62,927 | 62,927 |
Note: Quantity represents Weight in kilograms
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