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| Year | Trade Value | Weight (kg) | Quantity |
| 2005 | $853,510,428 | 7,465,742 | 7,465,742 |
| 2006 | $785,453,529 | 6,788,385 | 6,788,385 |
| 2007 | $3,579,599,461 | 8,868,244 | 8,868,244 |
| 2008 | $3,971,876,969 | 9,074,482 | 9,074,482 |
| 2009 | $3,414,360,678 | 7,040,997 | 7,040,997 |
| 2010 | $3,420,860,018 | 7,756,172 | 7,756,172 |
| 2011 | $3,154,926,795 | 7,264,743 | 7,264,743 |
Note: Quantity represents Weight in kilograms
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