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| Year | Trade Value | Weight (kg) | Quantity |
| 2005 | $600,337,000 | 96,056,140 | 96,056,140 |
| 2006 | $701,669,000 | 111,723,555 | 111,723,555 |
| 2007 | $762,293,000 | 115,196,812 | 115,196,812 |
| 2008 | $894,900,000 | 120,874,673 | 120,874,673 |
| 2009 | $618,237,000 | 79,421,550 | 79,421,550 |
| 2010 | $666,528,410 | 92,538,135 | 92,538,135 |
| 2011 | $564,286,895 | 66,470,567 | 66,470,567 |
Note: Quantity represents Weight in kilograms
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