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| Year | Trade Value | Weight (kg) | Quantity |
| 2005 | $329,427,329 | 1,422,802 | 1,422,802 |
| 2006 | $1,909,238,036 | 5,398,633 | 5,398,633 |
| 2007 | $1,287,509,096 | 3,500,190 | 3,500,190 |
| 2008 | $1,613,952,938 | 3,509,367 | 3,509,367 |
| 2009 | $3,011,404,663 | 7,131,814 | 7,131,814 |
| 2010 | $1,954,673,818 | 2,962,271 | 2,962,271 |
| 2011 | $4,032,402,683 | 3,155,962 | 3,155,962 |
Note: Quantity represents Weight in kilograms
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