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| Year | Trade Value | Weight (kg) | Quantity |
| 2005 | $20,252 | 17,629 | 17,629 |
| 2006 | $40,340 | 35,675 | 35,675 |
| 2007 | $27,445 | 24,273 | 24,273 |
| 2008 | $29,797 | 30,441 | 30,441 |
| 2009 | $26,700 | 41,604 | 41,604 |
| 2010 | $27,860 | 45,561 | 45,561 |
| 2011 | $15,717 | 17,502 | 17,502 |
Note: Quantity represents Weight in kilograms
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