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| Year | Trade Value | Weight (kg) | Quantity |
| 2005 | $26,910 | 415 | 415 |
| 2006 | $34,653 | 565 | 565 |
| 2007 | $50,211 | 1,621 | 1,621 |
| 2008 | $35,904 | 1,356 | 1,356 |
| 2009 | $33,828 | 1,015 | 1,015 |
| 2010 | $23,222 | 1,086 | 1,086 |
| 2011 | $32,778 | 1,699 | 1,699 |
Note: Quantity represents Weight in kilograms
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