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| Year | Trade Value | Weight (kg) | Quantity |
| 2005 | $124,716,245 | 461,287,204 | 461,287,204 |
| 2006 | $112,960,886 | 448,936,462 | 448,936,462 |
| 2007 | $202,317,021 | 394,069,563 | 394,069,563 |
| 2008 | $238,668,565 | 362,753,000 | 362,753,000 |
| 2009 | $261,199,517 | 608,764,000 | 608,764,000 |
| 2010 | $426,639,733 | 736,102,000 | 736,102,000 |
Note: Quantity represents Weight in kilograms
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