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| Year | Trade Value | Weight (kg) | Quantity |
| 2005 | $16,708 | 110,276 | 110,276 |
| 2006 | $26,298 | 40,500 | 40,500 |
| 2007 | $21,481 | 27,000 | 27,000 |
| 2008 | $5,594 | 18,700 | 18,700 |
| 2009 | $4,977 | 17,372 | 17,372 |
| 2010 | $2 | 1 | 1 |
| 2011 | $235 | 5,251 | 5,251 |
Note: Quantity represents Weight in kilograms
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