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| Year | Trade Value | Weight (kg) | Quantity |
| 2005 | $348 | 80 | 80 |
| 2006 | $5,401 | 967 | 967 |
| 2007 | $69,144 | 75,624 | 75,624 |
| 2008 | $84,999 | 70,171 | 70,171 |
| 2009 | $123,433 | 93,362 | 93,362 |
| 2010 | $105,071 | 70,205 | 70,205 |
| 2011 | $41,057 | 31,743 | 31,743 |
Note: Quantity represents Weight in kilograms
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