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| Year | Trade Value | Weight (kg) | Quantity |
| 2005 | $280,918,277 | 9,652,712 | 9,652,712 |
| 2006 | $345,362,119 | 7,247,109 | 7,247,109 |
| 2007 | $486,452,354 | 4,262,622 | 4,262,622 |
| 2008 | $552,654,164 | 3,299,482 | 3,299,482 |
| 2009 | $507,449,338 | 3,319,824 | 3,319,824 |
| 2010 | $663,681,989 | 5,834,407 | 5,834,407 |
| 2011 | $983,406,762 | 7,817,610 | 7,817,610 |
Note: Quantity represents Weight in kilograms
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