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| Year | Trade Value | Weight (kg) | Quantity |
| 2005 | $941,897,399 | 587,002,951 | 587,002,951 |
| 2006 | $1,240,389,530 | 541,591,047 | 541,591,047 |
| 2007 | $1,540,147,048 | 592,047,807 | 592,047,807 |
| 2008 | $1,337,925,725 | 588,230,200 | 588,230,200 |
| 2009 | $996,236,287 | 678,156,673 | 678,156,673 |
| 2010 | $1,201,309,980 | 574,048,992 | 574,048,992 |
| 2011 | $1,309,301,535 | 570,409,036 | 570,409,036 |
Note: Quantity represents Weight in kilograms
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