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| Year | Trade Value | Weight (kg) | Quantity |
| 2005 | $6,448 | 835 | 835 |
| 2006 | $20,682 | 2,528 | 2,528 |
| 2007 | $36,624 | 4,092 | 4,092 |
| 2008 | $161,914 | 18,371 | 18,371 |
| 2009 | $57,418 | 7,352 | 7,352 |
| 2010 | $75,586 | 7,419 | 7,419 |
| 2011 | $67,581 | 13,785 | 13,785 |
Note: Quantity represents Weight in kilograms
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