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| Year | Trade Value | Weight (kg) | Quantity |
| 2005 | $4,200 | 939 | 939 |
| 2006 | $19,748 | 17,229 | 17,229 |
| 2007 | $16,059 | 5,472 | 5,472 |
| 2008 | $14,751 | 9,558 | 9,558 |
| 2009 | $35,090 | 41,980 | 41,980 |
| 2010 | $15,682 | 15,606 | 15,606 |
| 2011 | $29,190 | 37,667 | 37,667 |
Note: Quantity represents Weight in kilograms
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