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| Year | Trade Value | Weight (kg) | Quantity |
| 2005 | $32,000 | 13,300 | 13,300 |
| 2006 | $284,000 | 153,400 | 153,400 |
| 2007 | $321,000 | 111,700 | 111,700 |
| 2008 | $388,000 | 107,300 | 107,300 |
| 2009 | $254,000 | 69,100 | 69,100 |
| 2010 | $135,000 | 36,100 | 36,100 |
| 2011 | $55,000 | 17,100 | 17,100 |
Note: Quantity represents Weight in kilograms
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