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| Year | Trade Value | Weight (kg) | Quantity |
| 2005 | $25,789 | 281 | 281 |
| 2006 | $34,695 | 976 | 976 |
| 2007 | $46,588 | 1,212 | 1,212 |
| 2008 | $83,580 | 2,481 | 2,481 |
| 2009 | $127,365 | 2,029 | 2,029 |
| 2010 | $76,189 | 1,240 | 1,240 |
| 2011 | $330,655 | 4,460 | 4,460 |
Note: Quantity represents Weight in kilograms
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