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| Year | Trade Value | Weight (kg) | Quantity |
| 2005 | $2,000 | 230,860 | 230,860 |
| 2006 | $1,204 | 129,769 | 129,769 |
| 2007 | $4,397 | 331,420 | 331,420 |
| 2008 | $850 | 54,605 | 54,605 |
| 2009 | $907 | 28,142 | 28,142 |
| 2010 | $3,493 | 33,535 | 33,535 |
| 2011 | $2,766 | 63,688 | 63,688 |
Note: Quantity represents Weight in kilograms
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