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| Year | Trade Value | Weight (kg) | Quantity |
| 2005 | $402,404,226 | 674,009 | 674,009 |
| 2006 | $400,385,558 | 708,198 | 708,198 |
| 2007 | $286,664,506 | 570,008 | 570,008 |
| 2008 | $388,429,693 | 659,290 | 659,290 |
| 2009 | $431,919,063 | 739,370 | 739,370 |
| 2010 | $438,668,613 | 863,042 | 863,042 |
| 2011 | $409,508,104 | 794,787 | 794,787 |
Note: Quantity represents Weight in kilograms
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