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| Year | Trade Value | Weight (kg) | Quantity |
| 2005 | $47,719,165 | 4,014,107 | 4,014,107 |
| 2006 | $86,878,144 | 27,932,146 | 27,932,146 |
| 2007 | $67,647,153 | 7,782,914 | 7,782,914 |
| 2008 | $437,133,361 | 51,541,384 | 51,541,384 |
| 2009 | $378,025,613 | 52,635,404 | 52,635,404 |
| 2010 | $500,318,631 | 67,246,690 | 67,246,690 |
| 2011 | $497,049,816 | 56,537,279 | 56,537,279 |
Note: Quantity represents Weight in kilograms
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