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| Year | Trade Value | Weight (kg) | Quantity |
| 2005 | $23,966 | 488 | 488 |
| 2006 | $22,783 | 744 | 744 |
| 2007 | $23,695 | 1,086 | 1,086 |
| 2008 | $35,390 | 2,275 | 2,275 |
| 2009 | $27,885 | 1,895 | 1,895 |
| 2010 | $21,242 | 1,520 | 1,520 |
| 2011 | $39,197 | 2,672 | 2,672 |
Note: Quantity represents Weight in kilograms
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