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| Year | Trade Value | Weight (kg) | Quantity |
| 2005 | $297,119,247 | 50,644,764 | 50,644,764 |
| 2006 | $333,848,236 | 64,742,607 | 64,742,607 |
| 2007 | $405,985,533 | 65,657,997 | 65,657,997 |
| 2008 | $484,699,921 | 51,737,632 | 51,737,632 |
| 2009 | $487,422,750 | 70,246,947 | 70,246,947 |
| 2010 | $579,581,383 | 73,390,657 | 73,390,657 |
| 2011 | $573,384,496 | 74,382,868 | 74,382,868 |
Note: Quantity represents Weight in kilograms
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