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| Year | Trade Value | Weight (kg) | Quantity |
| 2005 | $1,960 | 1,828 | 1,828 |
| 2006 | $1,078 | 1,480 | 1,480 |
| 2007 | $1,452 | 1,655 | 1,655 |
| 2008 | $2,039 | 1,914 | 1,914 |
| 2009 | $1,112 | 1,349 | 1,349 |
| 2010 | $1,475 | 1,528 | 1,528 |
| 2011 | $2,045 | 1,896 | 1,896 |
Note: Quantity represents Weight in kilograms
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