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| Year | Trade Value | Weight (kg) | Quantity |
| 2005 | $4,575 | 1,830 | 1,830 |
| 2006 | $4,410 | 980 | 980 |
| 2007 | $23,813 | 3,175 | 3,175 |
| 2008 | $91,723 | 8,696 | 8,696 |
| 2009 | $193,589 | 25,850 | 25,850 |
| 2010 | $18,741 | 2,457 | 2,457 |
| 2011 | $3,622 | 658 | 658 |
Note: Quantity represents Weight in kilograms
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