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| Year | Trade Value | Weight (kg) | Quantity |
| 2005 | $320 | 30 | 30 |
| 2006 | $110 | 265 | 265 |
| 2007 | $16,332 | 14,704 | 14,704 |
| 2008 | $22,239 | 17,122 | 17,122 |
| 2009 | $21,069 | 14,627 | 14,627 |
| 2010 | $21,711 | 14,475 | 14,475 |
| 2011 | $21,721 | 11,954 | 11,954 |
Note: Quantity represents Weight in kilograms
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