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| Year | Trade Value | Weight (kg) | Quantity |
| 2005 | $979 | 197 | 197 |
| 2006 | $17,423 | 3,513 | 3,513 |
| 2007 | $25,733 | 103,000 | 103,000 |
| 2008 | $12,460 | 34,888 | 34,888 |
| 2009 | $2,256 | 7,000 | 7,000 |
| 2010 | $1,253 | 2,400 | 2,400 |
| 2011 | $799 | 2,912 | 2,912 |
Note: Quantity represents Weight in kilograms
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