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| Year | Trade Value | Weight (kg) | Quantity |
| 2005 | $11,442 | 940 | 940 |
| 2006 | $12,767 | 869 | 869 |
| 2007 | $13,875 | 1,118 | 1,118 |
| 2008 | $31,053 | 1,441 | 1,441 |
| 2009 | $17,045 | 1,098 | 1,098 |
| 2010 | $23,983 | 1,219 | 1,219 |
| 2011 | $24,044 | 1,212 | 1,212 |
Note: Quantity represents Weight in kilograms
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