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| Year | Trade Value | Weight (kg) | Quantity |
| 2005 | $41,599 | 23,222 | 23,222 |
| 2006 | $101,277 | 61,082 | 61,082 |
| 2007 | $51,872 | 38,961 | 38,961 |
| 2008 | $94,714 | 27,321 | 27,321 |
| 2009 | $123,729 | 67,938 | 67,938 |
| 2010 | $240,934 | 140,941 | 140,941 |
| 2011 | $89,893 | 17,262 | 17,262 |
Note: Quantity represents Weight in kilograms
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