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| Year | Trade Value | Weight (kg) | Quantity |
| 2005 | $325,618,000 | 450,178 | 450,178 |
| 2006 | $292,582,000 | 384,055 | 384,055 |
| 2007 | $307,586,000 | 333,883 | 333,883 |
| 2008 | $544,118,000 | 433,608 | 433,608 |
| 2009 | $478,864,000 | 390,078 | 390,078 |
| 2010 | $389,188,385 | 412,140 | 412,140 |
| 2011 | $415,537,165 | 420,072 | 420,072 |
Note: Quantity represents Weight in kilograms
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