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| Year | Trade Value | Weight (kg) | Quantity |
| 2005 | $1,166,930,771 | 73,077,015 | 73,077,015 |
| 2006 | $1,616,654,849 | 100,901,442 | 100,901,442 |
| 2007 | $1,639,047,516 | 99,414,877 | 99,414,877 |
| 2008 | $1,581,292,280 | 85,783,195 | 85,783,195 |
| 2009 | $1,618,708,124 | 87,493,655 | 87,493,655 |
| 2010 | $2,464,559,998 | 147,247,142 | 147,247,142 |
| 2011 | $2,994,126,126 | 170,457,334 | 170,457,334 |
Note: Quantity represents Weight in kilograms
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