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| Year | Trade Value | Weight (kg) | Quantity |
| 2005 | $26,766 | 312,000 | 312,000 |
| 2006 | $8,005 | 21,486 | 21,486 |
| 2007 | $3,429 | 3,721 | 3,721 |
| 2008 | $69,479 | 526,197 | 526,197 |
| 2009 | $116,284 | 384,589 | 384,589 |
| 2010 | $29,545 | 97,600 | 97,600 |
| 2011 | $24,668 | 48,800 | 48,800 |
Note: Quantity represents Weight in kilograms
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