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| Year | Trade Value | Weight (kg) | Quantity |
| 2005 | $8,057 | 2,671 | 2,671 |
| 2006 | $8,190 | 2,529 | 2,529 |
| 2007 | $9,278 | 2,573 | 2,573 |
| 2008 | $1,522 | 991 | 991 |
| 2009 | $4,376 | 2,153 | 2,153 |
| 2010 | $4,087 | 3,113 | 3,113 |
| 2011 | $19,706 | 14,709 | 14,709 |
Note: Quantity represents Weight in kilograms
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