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| Year | Trade Value | Weight (kg) | Quantity |
| 2005 | $2,060 | 147,000 | 147,000 |
| 2006 | $497 | 39,380 | 39,380 |
| 2007 | $4,575 | 610,000 | 610,000 |
| 2008 | $3,879 | 2,840 | 2,840 |
| 2009 | $1,200 | 3,000 | 3,000 |
| 2010 | $1,011 | 8,000 | 8,000 |
| 2011 | $22 | 78 | 78 |
Note: Quantity represents Weight in kilograms
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