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| Year | Trade Value | Weight (kg) | Quantity |
| 2005 | $988 | 691 | 691 |
| 2006 | $5,718 | 2,468 | 2,468 |
| 2007 | $9,816 | 11,031 | 11,031 |
| 2008 | $21,826 | 15,722 | 15,722 |
| 2009 | $30,308 | 21,412 | 21,412 |
| 2010 | $107,320 | 11,297 | 11,297 |
| 2011 | $43,840 | 40,944 | 40,944 |
Note: Quantity represents Weight in kilograms
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