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| Year | Trade Value | Weight (kg) | Quantity |
| 2005 | $179,170 | 116,941 | 116,941 |
| 2006 | $101,015 | 26,634 | 26,634 |
| 2007 | $107,878 | 29,551 | 29,551 |
| 2008 | $101,344 | 21,850 | 21,850 |
| 2009 | $96,142 | 28,387 | 28,387 |
| 2010 | $75,708 | 32,402 | 32,402 |
| 2011 | $71,383 | 20,524 | 20,524 |
Note: Quantity represents Weight in kilograms
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