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| Year | Trade Value | Weight (kg) | Quantity |
| 2005 | $1,598 | 1,842 | 1,842 |
| 2006 | $1,857 | 1,500 | 1,500 |
| 2007 | $17,679 | 10,390 | 10,390 |
| 2008 | $1,218 | 872 | 872 |
| 2009 | $2,206 | 35,822 | 35,822 |
| 2010 | $985 | 10,275 | 10,275 |
| 2011 | $26,658 | 44,369 | 44,369 |
Note: Quantity represents Weight in kilograms
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