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| Year | Trade Value | Weight (kg) | Quantity |
| 2005 | $6,700 | 407 | 407 |
| 2006 | $38,700 | 3,005 | 3,005 |
| 2007 | $62,500 | 3,879 | 3,879 |
| 2008 | $174,800 | 11,194 | 11,194 |
| 2009 | $240,700 | 18,764 | 18,764 |
| 2010 | $236,800 | 23,625 | 23,625 |
| 2011 | $228,700 | 19,223 | 19,223 |
Note: Quantity represents Weight in kilograms
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