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| Year | Trade Value | Weight (kg) | Quantity |
| 2005 | $64,999,515 | 701,400 | 701,400 |
| 2006 | $72,016,224 | 721,690 | 721,690 |
| 2007 | $83,317,624 | 653,529 | 653,529 |
| 2008 | $78,861,486 | 688,457 | 688,457 |
| 2009 | $70,200,474 | 577,781 | 577,781 |
| 2010 | $65,701,543 | 496,499 | 496,499 |
| 2011 | $90,888,653 | 506,548 | 506,548 |
Note: Quantity represents Weight in kilograms
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