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| Year | Trade Value | Weight (kg) | Quantity |
| 2005 | $1,761,539,808 | 5,053,861 | 5,053,861 |
| 2006 | $2,117,624,438 | 5,549,449 | 5,549,449 |
| 2007 | $2,604,610,247 | 5,351,714 | 5,351,714 |
| 2008 | $2,307,307,742 | 4,497,893 | 4,497,893 |
| 2009 | $1,918,059,580 | 3,600,414 | 3,600,414 |
| 2010 | $2,840,337,086 | 4,548,777 | 4,548,777 |
| 2011 | $2,942,524,678 | 4,318,253 | 4,318,253 |
Note: Quantity represents Weight in kilograms
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