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| Year | Trade Value | Weight (kg) | Quantity |
| 2005 | $731 | 425 | 425 |
| 2006 | $13,797 | 3,071 | 3,071 |
| 2007 | $16,352 | 3,438 | 3,438 |
| 2008 | $19,882 | 3,197 | 3,197 |
| 2009 | $10,012 | 1,491 | 1,491 |
| 2010 | $71,682 | 16,894 | 16,894 |
| 2011 | $84,349 | 7,229 | 7,229 |
Note: Quantity represents Weight in kilograms
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