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| Year | Trade Value | Weight (kg) | Quantity |
| 2005 | $19,435 | 5,238 | 5,238 |
| 2006 | $31,703 | 15,220 | 15,220 |
| 2007 | $32,659 | 30,803 | 30,803 |
| 2008 | $61,809 | 39,048 | 39,048 |
| 2009 | $27,830 | 10,670 | 10,670 |
| 2010 | $40 | 1 | 1 |
| 2011 | $9,145 | 4,562 | 4,562 |
Note: Quantity represents Weight in kilograms
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