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| Year | Trade Value | Weight (kg) | Quantity |
| 2005 | $765,693,603 | 35,830,304 | 35,830,304 |
| 2006 | $1,140,451,626 | 35,853,124 | 35,853,124 |
| 2007 | $578,883,478 | 0 | 0 |
| 2008 | $95,868,154 | 0 | 0 |
| 2009 | $64,065,560 | 0 | 0 |
| 2010 | $60,327,264 | 0 | 0 |
| 2011 | $48,697,053 | 0 | 0 |
Note: Quantity represents Weight in kilograms
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