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| Year | Trade Value | Weight (kg) | Quantity |
| 2005 | $17,835 | 19,789 | 19,789 |
| 2006 | $27,063 | 33,399 | 33,399 |
| 2007 | $27,304 | 26,701 | 26,701 |
| 2008 | $32,555 | 26,081 | 26,081 |
| 2009 | $58,542 | 43,365 | 43,365 |
| 2010 | $32,480 | 18,015 | 18,015 |
| 2011 | $33,671 | 24,696 | 24,696 |
Note: Quantity represents Weight in kilograms
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