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| Year | Trade Value | Weight (kg) | Quantity |
| 2005 | $23,200 | 2,698 | 2,698 |
| 2006 | $13,600 | 157 | 157 |
| 2007 | $98,800 | 8,634 | 8,634 |
| 2008 | $92,200 | 7,164 | 7,164 |
| 2009 | $133,900 | 16,829 | 16,829 |
| 2010 | $37,200 | 2,654 | 2,654 |
| 2011 | $6,300 | 619 | 619 |
Note: Quantity represents Weight in kilograms
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