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| Year | Trade Value | Weight (kg) | Quantity |
| 2005 | $993,533,113 | 46,491,957 | 46,491,957 |
| 2006 | $1,095,927,214 | 34,453,381 | 34,453,381 |
| 2007 | $894,356,662 | 0 | 0 |
| 2008 | $810,132,663 | 0 | 0 |
| 2009 | $646,000,379 | 0 | 0 |
| 2010 | $791,364,713 | 0 | 0 |
| 2011 | $865,762,946 | 0 | 0 |
Note: Quantity represents Weight in kilograms
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