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| Year | Trade Value | Weight (kg) | Quantity |
| 2005 | $123,198 | 28,159 | 28,159 |
| 2006 | $155,549 | 36,828 | 36,828 |
| 2007 | $35,944 | 9,080 | 9,080 |
| 2008 | $31,148 | 7,407 | 7,407 |
| 2009 | $28,951 | 4,450 | 4,450 |
| 2010 | $316,157 | 66,633 | 66,633 |
| 2011 | $242,073 | 35,365 | 35,365 |
Note: Quantity represents Weight in kilograms
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