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| Year | Trade Value | Weight (kg) | Quantity |
| 2005 | $8,142 | 10,879 | 10,879 |
| 2006 | $134 | 60 | 60 |
| 2007 | $7,131 | 10,974 | 10,974 |
| 2008 | $7,289 | 7,386 | 7,386 |
| 2009 | $6,095 | 5,621 | 5,621 |
| 2010 | $12,592 | 13,469 | 13,469 |
| 2011 | $8,752 | 8,401 | 8,401 |
Note: Quantity represents Weight in kilograms
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