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| Year | Trade Value | Weight (kg) | Quantity |
| 2005 | $43,198 | 7,919 | 7,919 |
| 2006 | $34,518 | 6,310 | 6,310 |
| 2007 | $76,263 | 11,331 | 11,331 |
| 2008 | $199,953 | 20,810 | 20,810 |
| 2009 | $48,968 | 6,327 | 6,327 |
| 2010 | $64,389 | 11,430 | 11,430 |
| 2011 | $94,907 | 10,927 | 10,927 |
Note: Quantity represents Weight in kilograms
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