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| Year | Trade Value | Weight (kg) | Quantity |
| 2005 | $834,726,845 | 504,369,088 | 504,369,088 |
| 2006 | $1,109,822,435 | 596,150,782 | 596,150,782 |
| 2007 | $1,367,829,598 | 653,191,782 | 653,191,782 |
| 2008 | $1,472,210,757 | 706,136,239 | 706,136,239 |
| 2009 | $1,122,871,864 | 562,204,167 | 562,204,167 |
| 2010 | $1,457,996,845 | 657,530,070 | 657,530,070 |
| 2011 | $1,792,310,975 | 633,043,204 | 633,043,204 |
Note: Quantity represents Weight in kilograms
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