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| Year | Trade Value | Weight (kg) | Quantity |
| 2005 | $157,941,699 | 3,399,038,689 | 3,399,038,689 |
| 2006 | $190,595,213 | 3,385,448,425 | 3,385,448,425 |
| 2007 | $402,117,036 | 4,180,040,024 | 4,180,040,024 |
| 2008 | $223,716,470 | 3,136,981,936 | 3,136,981,936 |
| 2009 | $170,956,837 | 3,589,361,263 | 3,589,361,263 |
| 2010 | $283,443,326 | 4,903,618,723 | 4,903,618,723 |
| 2011 | $302,117,681 | 4,427,982,867 | 4,427,982,867 |
Note: Quantity represents Weight in kilograms
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