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| Year | Trade Value | Weight (kg) | Quantity |
| 2005 | $167,127,007 | 1,645,514,150 | 1,645,514,150 |
| 2006 | $66,588,247 | 864,546,500 | 864,546,500 |
| 2007 | $127,934,007 | 1,138,508,730 | 1,138,508,730 |
| 2008 | $319,769,182 | 1,467,893,190 | 1,467,893,190 |
| 2009 | $34,861,222 | 260,069,640 | 260,069,640 |
| 2010 | $170,633,403 | 876,437,757 | 876,437,757 |
| 2011 | $368,311,542 | 1,482,039,457 | 1,482,039,457 |
Note: Quantity represents Weight in kilograms
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