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| Year | Trade Value | Weight (kg) | Quantity |
| 2005 | $68,064 | 20,607 | 20,607 |
| 2006 | $86,351 | 21,928 | 21,928 |
| 2007 | $87,055 | 21,424 | 21,424 |
| 2008 | $84,315 | 19,978 | 19,978 |
| 2009 | $67,697 | 13,798 | 13,798 |
| 2010 | $59,821 | 12,720 | 12,720 |
| 2011 | $60,963 | 14,230 | 14,230 |
Note: Quantity represents Weight in kilograms
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