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| Year | Trade Value | Weight (kg) | Quantity |
| 2005 | $6,789 | 15 | 15 |
| 2006 | $62,727 | 62,562 | 62,562 |
| 2007 | $23,876 | 12,888 | 12,888 |
| 2008 | $29,239 | 19,621 | 19,621 |
| 2009 | $89,402 | 80,712 | 80,712 |
| 2010 | $59,910 | 26,550 | 26,550 |
| 2011 | $61,877 | 23,372 | 23,372 |
Note: Quantity represents Weight in kilograms
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