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| Year | Trade Value | Weight (kg) | Quantity |
| 2005 | $198,391 | 572,079 | 572,079 |
| 2006 | $288,339 | 260,203 | 260,203 |
| 2007 | $211,759 | 191,302 | 191,302 |
| 2008 | $48,242 | 41,658 | 41,658 |
| 2009 | $187,060 | 161,294 | 161,294 |
| 2010 | $29,042 | 30,833 | 30,833 |
| 2011 | $225,786 | 125,049 | 125,049 |
Note: Quantity represents Weight in kilograms
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