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| Year | Trade Value | Weight (kg) | Quantity |
| 2005 | $723,900,440 | 16,173,669 | 16,173,669 |
| 2006 | $834,646,142 | 14,134,247 | 14,134,247 |
| 2007 | $653,132,972 | 5,586,036 | 5,586,036 |
| 2008 | $880,404,286 | 7,420,990 | 7,420,990 |
| 2009 | $427,153,355 | 5,226,673 | 5,226,673 |
| 2010 | $480,177,808 | 5,308,308 | 5,308,308 |
| 2011 | $916,778,097 | 9,590,515 | 9,590,515 |
Note: Quantity represents Weight in kilograms
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