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| Year | Trade Value | Weight (kg) | Quantity |
| 2005 | $5,084,000 | 468,669 | 468,669 |
| 2006 | $3,610,000 | 292,567 | 292,567 |
| 2007 | $2,980,000 | 211,771 | 211,771 |
| 2008 | $2,798,000 | 148,851 | 148,851 |
| 2009 | $2,713,000 | 185,610 | 185,610 |
| 2010 | $2,288,000 | 109,872 | 109,872 |
| 2011 | $2,512,000 | 121,697 | 121,697 |
Note: Quantity represents Weight in kilograms
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