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| Year | Trade Value | Weight (kg) | Quantity |
| 2005 | $22,039 | 7,168 | 7,168 |
| 2006 | $19,661 | 7,186 | 7,186 |
| 2007 | $43,972 | 12,319 | 12,319 |
| 2008 | $91,455 | 18,438 | 18,438 |
| 2009 | $37,218 | 20,756 | 20,756 |
| 2010 | $148,145 | 58,353 | 58,353 |
| 2011 | $237,966 | 72,873 | 72,873 |
Note: Quantity represents Weight in kilograms
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