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| Year | Trade Value | Weight (kg) | Quantity |
| 2005 | $22,000 | 18,800 | 18,800 |
| 2007 | $42,000 | 20,600 | 20,600 |
| 2008 | $138,000 | 49,300 | 49,300 |
| 2009 | $230,000 | 85,300 | 85,300 |
| 2010 | $205,000 | 109,400 | 109,400 |
| 2011 | $204,000 | 75,100 | 75,100 |
Note: Quantity represents Weight in kilograms
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