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| Year | Trade Value | Weight (kg) | Quantity |
| 2005 | $35,000 | 14,637 | 14,637 |
| 2006 | $28,200 | 11,289 | 11,289 |
| 2007 | $21,800 | 8,351 | 8,351 |
| 2008 | $24,700 | 8,627 | 8,627 |
| 2009 | $34,600 | 14,533 | 14,533 |
| 2010 | $31,100 | 34,436 | 34,436 |
| 2011 | $15,300 | 6,240 | 6,240 |
Note: Quantity represents Weight in kilograms
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