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| Year | Trade Value | Weight (kg) | Quantity |
| 2005 | $507,956,378 | 18,776,368 | 18,776,368 |
| 2006 | $288,245,674 | 16,433,419 | 16,433,419 |
| 2007 | $164,847,548 | 6,175,520 | 6,175,520 |
| 2008 | $109,024,504 | 4,348,725 | 4,348,725 |
| 2009 | $66,383,651 | 3,391,166 | 3,391,166 |
| 2010 | $108,431,656 | 5,599,602 | 5,599,602 |
Note: Quantity represents Weight in kilograms
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