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| Year | Trade Value | Weight (kg) | Quantity |
| 2005 | $202 | 335 | 335 |
| 2006 | $4,691 | 3,054 | 3,054 |
| 2007 | $24,163 | 36,899 | 36,899 |
| 2008 | $35,652 | 28,982 | 28,982 |
| 2009 | $4,584 | 28,784 | 28,784 |
| 2010 | $26,733 | 19,517 | 19,517 |
| 2011 | $10,278 | 12,698 | 12,698 |
Note: Quantity represents Weight in kilograms
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