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| Year | Trade Value | Weight (kg) | Quantity |
| 2005 | $484,941,509 | 117,774,142 | 117,774,142 |
| 2006 | $625,783,387 | 102,016,310 | 102,016,310 |
| 2007 | $547,184,000 | 90,630,002 | 90,630,002 |
| 2008 | $598,775,482 | 96,374,459 | 96,374,459 |
| 2009 | $568,676,086 | 87,484,498 | 87,484,498 |
| 2010 | $554,336,733 | 72,433,948 | 72,433,948 |
| 2011 | $759,716,722 | 83,856,919 | 83,856,919 |
Note: Quantity represents Weight in kilograms
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