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| Year | Trade Value | Weight (kg) | Quantity |
| 2005 | $295,906,000 | 8,133 | 8,133 |
| 2006 | $391,368,000 | 9,109 | 9,109 |
| 2007 | $461,120,000 | 7,126 | 7,126 |
| 2008 | $519,323,000 | 8,087 | 8,087 |
| 2009 | $318,914,000 | 8,299 | 8,299 |
| 2010 | $445,767,391 | 8,704 | 8,704 |
| 2011 | $421,277,033 | 6,940 | 6,940 |
Note: Quantity represents Weight in kilograms
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