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| Year | Trade Value | Weight (kg) | Quantity |
| 2005 | $107,554,895 | 461,587,325 | 461,587,325 |
| 2006 | $133,204,816 | 460,963,000 | 460,963,000 |
| 2007 | $129,285,247 | 414,376,377 | 414,376,377 |
| 2008 | $193,401,365 | 363,014,000 | 363,014,000 |
| 2009 | $188,283,960 | 496,219,425 | 496,219,425 |
| 2010 | $211,148,557 | 478,548,000 | 478,548,000 |
| 2011 | $290,021,940 | 479,819,000 | 479,819,000 |
Note: Quantity represents Weight in kilograms
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