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| Year | Trade Value | Weight (kg) | Quantity |
| 2005 | $27,998 | 21,819 | 21,819 |
| 2006 | $42,737 | 11,016 | 11,016 |
| 2007 | $71,698 | 15,235 | 15,235 |
| 2008 | $49,795 | 7,461 | 7,461 |
| 2009 | $40,438 | 16,916 | 16,916 |
| 2010 | $96,133 | 16,453 | 16,453 |
| 2011 | $86,124 | 20,355 | 20,355 |
Note: Quantity represents Weight in kilograms
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