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| Year | Trade Value | Weight (kg) | Quantity |
| 2005 | $346,000 | 11,400 | 11,400 |
| 2006 | $154,000 | 14,300 | 14,300 |
| 2007 | $138,000 | 8,400 | 8,400 |
| 2008 | $61,000 | 1,700 | 1,700 |
| 2009 | $201,000 | 5,454 | 5,454 |
| 2010 | $19,000 | 1,161 | 1,161 |
| 2011 | $16,000 | 400 | 400 |
Note: Quantity represents Weight in kilograms
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