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| Year | Trade Value | Weight (kg) | Quantity |
| 2005 | $9,331 | 620 | 620 |
| 2006 | $7,181 | 1,067 | 1,067 |
| 2007 | $5,725 | 1,573 | 1,573 |
| 2008 | $35,297 | 19,494 | 19,494 |
| 2009 | $9,769 | 2,306 | 2,306 |
| 2010 | $52,038 | 34,967 | 34,967 |
| 2011 | $86,951 | 41,978 | 41,978 |
Note: Quantity represents Weight in kilograms
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