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| Year | Trade Value | Weight (kg) | Quantity |
| 2005 | $77,875,530 | 1,558,046,781 | 1,558,046,781 |
| 2006 | $52,075,621 | 1,045,486,125 | 1,045,486,125 |
| 2007 | $64,514,160 | 1,158,150,778 | 1,158,150,778 |
| 2008 | $55,591,153 | 812,294,179 | 812,294,179 |
| 2009 | $26,847,195 | 411,748,390 | 411,748,390 |
| 2010 | $42,316,855 | 625,960,651 | 625,960,651 |
| 2011 | $30,545,915 | 480,308,211 | 480,308,211 |
Note: Quantity represents Weight in kilograms
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