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| Year | Trade Value | Weight (kg) | Quantity |
| 2005 | $18,310 | 929 | 929 |
| 2006 | $74,812 | 3,154 | 3,154 |
| 2007 | $40,483 | 1,947 | 1,947 |
| 2008 | $35,739 | 1,869 | 1,869 |
| 2009 | $37,305 | 7,132 | 7,132 |
| 2010 | $37,756 | 1,137 | 1,137 |
| 2011 | $33,691 | 1,973 | 1,973 |
Note: Quantity represents Weight in kilograms
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