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| Year | Trade Value | Weight (kg) | Quantity |
| 2005 | $309 | 160 | 160 |
| 2006 | $1,768 | 927 | 927 |
| 2007 | $19,718 | 7,308 | 7,308 |
| 2008 | $88,653 | 76,938 | 76,938 |
| 2009 | $130,474 | 100,514 | 100,514 |
| 2010 | $136,285 | 104,635 | 104,635 |
| 2011 | $101,644 | 171,806 | 171,806 |
Note: Quantity represents Weight in kilograms
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