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| Year | Trade Value | Weight (kg) | Quantity |
| 2005 | $8,377 | 272 | 272 |
| 2006 | $23,946 | 6,141 | 6,141 |
| 2007 | $41,467 | 19,780 | 19,780 |
| 2008 | $69,229 | 31,408 | 31,408 |
| 2009 | $80,376 | 32,254 | 32,254 |
| 2010 | $134,604 | 54,018 | 54,018 |
| 2011 | $138,455 | 76,190 | 76,190 |
Note: Quantity represents Weight in kilograms
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