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| Year | Trade Value | Weight (kg) | Quantity |
| 2005 | $40,616 | 20,901 | 20,901 |
| 2006 | $73,538 | 68,954 | 68,954 |
| 2007 | $34,530 | 23,054 | 23,054 |
| 2008 | $59,354 | 48,165 | 48,165 |
| 2009 | $14,177 | 18,579 | 18,579 |
| 2010 | $20,162 | 3,962 | 3,962 |
| 2011 | $24,816 | 32,841 | 32,841 |
Note: Quantity represents Weight in kilograms
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