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| Year | Trade Value | Weight (kg) | Quantity |
| 2005 | $265,485,763 | 378,817,893 | 378,817,893 |
| 2006 | $305,740,015 | 415,505,538 | 415,505,538 |
| 2007 | $316,947,238 | 406,298,048 | 406,298,048 |
| 2008 | $350,432,564 | 445,702,377 | 445,702,377 |
| 2009 | $326,247,285 | 361,219,834 | 361,219,834 |
| 2010 | $404,433,890 | 452,870,775 | 452,870,775 |
| 2011 | $474,356,975 | 512,507,463 | 512,507,463 |
Note: Quantity represents Weight in kilograms
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