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| Year | Trade Value | Weight (kg) | Quantity |
| 2005 | $144,675,209 | 80,395,180 | 80,395,180 |
| 2006 | $214,124,305 | 111,915,271 | 111,915,271 |
| 2007 | $312,153,372 | 139,353,158 | 139,353,158 |
| 2008 | $448,382,532 | 172,317,839 | 172,317,839 |
| 2009 | $407,580,296 | 179,526,043 | 179,526,043 |
| 2010 | $622,381,123 | 241,728,463 | 241,728,463 |
| 2011 | $788,555,013 | 288,848,877 | 288,848,877 |
Note: Quantity represents Weight in kilograms
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