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| Year | Trade Value | Weight (kg) | Quantity |
| 2005 | $489,969,955 | 1,077,597 | 1,077,597 |
| 2006 | $670,231,785 | 1,470,453 | 1,470,453 |
| 2007 | $765,950,343 | 1,760,431 | 1,760,431 |
| 2008 | $771,769,471 | 1,952,595 | 1,952,595 |
| 2009 | $803,574,507 | 1,980,387 | 1,980,387 |
| 2010 | $1,146,124,625 | 2,869,554 | 2,869,554 |
| 2011 | $1,150,091,551 | 3,111,073 | 3,111,073 |
Note: Quantity represents Weight in kilograms
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