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| Year | Trade Value | Weight (kg) | Quantity |
| 2005 | $1,803,686,767 | 3,075,440 | 3,075,440 |
| 2006 | $1,471,365,362 | 37,365,202 | 37,365,202 |
| 2007 | $1,499,581,845 | 8,551,087 | 8,551,087 |
| 2008 | $1,375,096,171 | 10,202,699 | 10,202,699 |
| 2009 | $1,342,012,102 | 5,288,412 | 5,288,412 |
| 2010 | $1,431,888,000 | 6,888,297 | 6,888,297 |
| 2011 | $1,716,331,717 | 5,513,289 | 5,513,289 |
Note: Quantity represents Weight in kilograms
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