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| Year | Trade Value | Weight (kg) | Quantity |
| 2005 | $51,545 | 17,763 | 17,763 |
| 2006 | $1,634 | 699 | 699 |
| 2007 | $18,040 | 5,851 | 5,851 |
| 2008 | $102,550 | 28,567 | 28,567 |
| 2009 | $21,102 | 7,840 | 7,840 |
| 2010 | $377,570 | 127,370 | 127,370 |
| 2011 | $81,125 | 19,600 | 19,600 |
Note: Quantity represents Weight in kilograms
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