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| Year | Trade Value | Weight (kg) | Quantity |
| 2005 | $83,960 | 30,246 | 30,246 |
| 2006 | $86,414 | 21,284 | 21,284 |
| 2007 | $123,377 | 34,139 | 34,139 |
| 2008 | $226,314 | 59,194 | 59,194 |
| 2009 | $155,885 | 31,428 | 31,428 |
| 2010 | $316,259 | 64,404 | 64,404 |
| 2011 | $257,598 | 51,135 | 51,135 |
Note: Quantity represents Weight in kilograms
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