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| Year | Trade Value | Weight (kg) | Quantity |
| 2005 | $17,000 | 13,800 | 13,800 |
| 2006 | $59,000 | 36,100 | 36,100 |
| 2007 | $155,000 | 57,900 | 57,900 |
| 2009 | $465,000 | 283,900 | 283,900 |
| 2010 | $354,000 | 229,100 | 229,100 |
| 2011 | $445,000 | 302,000 | 302,000 |
Note: Quantity represents Weight in kilograms
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