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| Year | Trade Value | Weight (kg) | Quantity |
| 2005 | $304,316,448 | 97,758,140 | 97,758,140 |
| 2006 | $369,222,467 | 113,736,037 | 113,736,037 |
| 2007 | $402,959,592 | 111,890,462 | 111,890,462 |
| 2008 | $455,485,280 | 130,522,644 | 130,522,644 |
| 2009 | $434,270,839 | 106,212,100 | 106,212,100 |
| 2010 | $516,952,758 | 121,392,492 | 121,392,492 |
| 2011 | $619,530,740 | 138,453,193 | 138,453,193 |
Note: Quantity represents Weight in kilograms
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