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| Year | Trade Value | Weight (kg) | Quantity |
| 2005 | $4,575 | 3,915 | 3,915 |
| 2006 | $3,575 | 4,487 | 4,487 |
| 2007 | $1,395 | 1,034 | 1,034 |
| 2008 | $1,139 | 980 | 980 |
| 2009 | $1,491 | 5,147 | 5,147 |
| 2010 | $10,688 | 30,379 | 30,379 |
| 2011 | $4,566 | 5,939 | 5,939 |
Note: Quantity represents Weight in kilograms
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