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| Year | Trade Value | Weight (kg) | Quantity |
| 2005 | $532,756,000 | 1,439,227 | 1,439,227 |
| 2006 | $848,586,000 | 1,902,646 | 1,902,646 |
| 2007 | $1,045,174,000 | 1,963,391 | 1,963,391 |
| 2008 | $1,922,353,000 | 3,324,570 | 3,324,570 |
| 2009 | $1,418,741,000 | 3,743,000 | 3,743,000 |
| 2010 | $1,335,937,709 | 4,123,750 | 4,123,750 |
| 2011 | $1,098,692,263 | 3,242,949 | 3,242,949 |
Note: Quantity represents Weight in kilograms
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