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| Year | Trade Value | Weight (kg) | Quantity |
| 2005 | $73,632,011 | 378,097,488 | 378,097,488 |
| 2006 | $98,489,804 | 485,979,809 | 485,979,809 |
| 2007 | $166,310,578 | 442,294,929 | 442,294,929 |
| 2008 | $219,177,102 | 372,151,098 | 372,151,098 |
| 2009 | $160,972,982 | 541,746,626 | 541,746,626 |
| 2010 | $103,133,881 | 428,699,480 | 428,699,480 |
| 2011 | $138,845,535 | 354,176,613 | 354,176,613 |
Note: Quantity represents Weight in kilograms
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