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| Year | Trade Value | Weight (kg) | Quantity |
| 2005 | $1,202 | 76 | 76 |
| 2006 | $1,217 | 425 | 425 |
| 2007 | $7,301 | 1,400 | 1,400 |
| 2008 | $32,806 | 18,000 | 18,000 |
| 2009 | $12,052 | 49,052 | 49,052 |
| 2010 | $20,347 | 42,000 | 42,000 |
| 2011 | $13,576 | 3,423 | 3,423 |
Note: Quantity represents Weight in kilograms
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