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| Year | Trade Value | Weight (kg) | Quantity |
| 2005 | $16,060 | 9,932 | 9,932 |
| 2006 | $6,167 | 8,025 | 8,025 |
| 2007 | $35,918 | 38,795 | 38,795 |
| 2008 | $105,809 | 87,000 | 87,000 |
| 2009 | $57,373 | 44,460 | 44,460 |
| 2010 | $207,820 | 169,180 | 169,180 |
| 2011 | $62,737 | 30,408 | 30,408 |
Note: Quantity represents Weight in kilograms
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