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| Year | Trade Value | Weight (kg) | Quantity |
| 2005 | $36,300 | 17,228 | 17,228 |
| 2006 | $38,700 | 14,661 | 14,661 |
| 2007 | $43,300 | 14,942 | 14,942 |
| 2008 | $48,700 | 11,458 | 11,458 |
| 2009 | $70,000 | 19,762 | 19,762 |
| 2010 | $77,800 | 26,715 | 26,715 |
| 2011 | $144,100 | 43,348 | 43,348 |
Note: Quantity represents Weight in kilograms
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