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| Year | Trade Value | Weight (kg) | Quantity |
| 2005 | $11,289 | 840 | 840 |
| 2006 | $13,254 | 3,395 | 3,395 |
| 2007 | $14,864 | 2,982 | 2,982 |
| 2008 | $29,729 | 7,222 | 7,222 |
| 2009 | $14,974 | 3,757 | 3,757 |
| 2010 | $29,498 | 6,171 | 6,171 |
| 2011 | $167,399 | 45,237 | 45,237 |
Note: Quantity represents Weight in kilograms
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