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| Year | Trade Value | Weight (kg) | Quantity |
| 2005 | $124,854,000 | 451,272 | 451,272 |
| 2006 | $124,290,000 | 449,234 | 449,234 |
| 2007 | $101,826,000 | 330,459 | 330,459 |
| 2008 | $92,844,000 | 295,957 | 295,957 |
| 2009 | $77,141,000 | 204,932 | 204,932 |
| 2010 | $97,086,000 | 295,317 | 295,317 |
| 2011 | $80,697,000 | 178,916 | 178,916 |
Note: Quantity represents Weight in kilograms
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