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| Year | Trade Value | Weight (kg) | Quantity |
| 2005 | $598,627,867 | 476,053,820 | 476,053,820 |
| 2006 | $743,994,767 | 544,761,586 | 544,761,586 |
| 2007 | $911,163,009 | 579,297,537 | 579,297,537 |
| 2008 | $786,654,522 | 468,025,992 | 468,025,992 |
| 2009 | $563,654,591 | 487,125,619 | 487,125,619 |
| 2010 | $768,164,446 | 508,295,834 | 508,295,834 |
| 2011 | $726,955,560 | 407,151,036 | 407,151,036 |
Note: Quantity represents Weight in kilograms
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