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| Year | Trade Value | Weight (kg) | Quantity |
| 2005 | $450,446,000 | 30,964 | 30,964 |
| 2006 | $468,661,778 | 27,635 | 27,635 |
| 2007 | $84,302,799 | 16,640 | 16,640 |
| 2008 | $26,468,400 | 976 | 976 |
| 2009 | $88,793,843 | 3,056 | 3,056 |
| 2010 | $121,374,805 | 3,905 | 3,905 |
| 2011 | $150,500,345 | 3,126 | 3,126 |
Note: Quantity represents Weight in kilograms
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