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| Year | Trade Value | Weight (kg) | Quantity |
| 2005 | $668 | 165 | 165 |
| 2006 | $465 | 37 | 37 |
| 2007 | $84,699 | 42,907 | 42,907 |
| 2008 | $36,710 | 15,808 | 15,808 |
| 2009 | $712,819 | 2,834,140 | 2,834,140 |
| 2010 | $2,842 | 871 | 871 |
| 2011 | $65,692 | 28,034 | 28,034 |
Note: Quantity represents Weight in kilograms
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