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| Year | Trade Value | Weight (kg) | Quantity |
| 2005 | $497,009,293 | 430,972,820 | 430,972,820 |
| 2006 | $594,004,221 | 462,403,812 | 462,403,812 |
| 2007 | $804,021,811 | 582,672,905 | 582,672,905 |
| 2008 | $933,354,457 | 599,531,214 | 599,531,214 |
| 2009 | $884,284,536 | 743,500,524 | 743,500,524 |
| 2010 | $1,554,036,121 | 1,045,666,708 | 1,045,666,708 |
| 2011 | $1,722,110,974 | 984,142,597 | 984,142,597 |
Note: Quantity represents Weight in kilograms
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