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| Year | Trade Value | Weight (kg) | Quantity |
| 2005 | $1,600 | 2,073 | 2,073 |
| 2006 | $20,600 | 27,239 | 27,239 |
| 2007 | $100 | 42 | 42 |
| 2008 | $48,500 | 43,123 | 43,123 |
| 2009 | $193,600 | 172,769 | 172,769 |
| 2010 | $347,200 | 247,235 | 247,235 |
| 2011 | $343,800 | 235,958 | 235,958 |
Note: Quantity represents Weight in kilograms
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